-
Probing Quantum Materials with Uniaxial Stress Annu. Rev. Condens. Matter Phys. (IF 14.3) Pub Date : 2024-12-03 Clifford W. Hicks, Fabian Jerzembeck, Hilary M.L. Noad, Mark E. Barber, Andrew P. Mackenzie
Over the past approximately 10 years, it has become routine to use piezoelectric actuators to apply large anisotropic stresses to correlated electron materials. Elastic strains exceeding 1% can often be achieved, which is sufficient to qualitatively alter the magnetic and/or electronic structures of a wide range of correlated electron materials. Experiments fall into two broad groups. In one, explicit
-
Experimental Insights into Quantum Spin Ice Physics in Dipole–Octupole Pyrochlore Magnets Annu. Rev. Condens. Matter Phys. (IF 14.3) Pub Date : 2024-12-03 Evan M. Smith, Elsa Lhotel, Sylvain Petit, Bruce D. Gaulin
We review a key subset of the experimental studies that have recently focused on cubic pyrochlore magnets whose pseudospin-1 $/$ 2 degrees of freedom have mixed dipolar and octupolar character. We discuss how this comes about and how the character of the pseudospin-1 $/$ 2 can be experimentally determined. The minimal spin Hamiltonian for such magnetic insulators is known to give rise to a rich phase
-
From Fluctuations and Disorder to Scaling and Control: The Emergence of Resistance in Microbial Communities Annu. Rev. Condens. Matter Phys. (IF 14.3) Pub Date : 2024-11-26 Jacob Moran, Kevin B. Wood
Antibiotics are a cornerstone of modern medicine, and antibiotic resistance is a growing threat to public health. The evolution of resistance is a multiscale process shaped by many of the same phenomena that have fascinated condensed matter physicists for decades: fluctuations, disorder, scaling, and the emergence of structure from local heterogeneous interactions. In this review, we offer a brief
-
Machine Learning for Climate Physics and Simulations Annu. Rev. Condens. Matter Phys. (IF 14.3) Pub Date : 2024-11-26 Ching-Yao Lai, Pedram Hassanzadeh, Aditi Sheshadri, Maike Sonnewald, Raffaele Ferrari, Venkatramani Balaji
We discuss the emerging advances and opportunities at the intersection of machine learning (ML) and climate physics, highlighting the use of ML techniques, including supervised, unsupervised, and equation discovery, to accelerate climate knowledge discoveries and simulations. We delineate two distinct yet complementary aspects: (a) ML for climate physics and (b) ML for climate simulations. Although
-
Activity Unmasks Chirality in Liquid-Crystalline Matter Annu. Rev. Condens. Matter Phys. (IF 14.3) Pub Date : 2024-11-21 Ananyo Maitra
Active matter theories naturally describe the mechanics of living systems. As biological matter is overwhelmingly chiral, an understanding of the implications of chirality for the mechanics and statistical mechanics of active materials is a priority. This article examines active, chiral materials from a liquid-crystal physicist's point of view, extracting general features of broken-symmetry-ordered
-
Emergent Simplicities in the Living Histories of Individual Cells Annu. Rev. Condens. Matter Phys. (IF 14.3) Pub Date : 2024-11-15 Charles S. Wright, Kunaal Joshi, Rudro R. Biswas, Srividya Iyer-Biswas
Organisms maintain the status quo, holding key physiological variables constant to within an acceptable tolerance, and yet adapt with precision and plasticity to dynamic changes in externalities. What organizational principles ensure such exquisite yet robust control of systems-level “state variables” in complex systems with an extraordinary number of moving parts and fluctuating variables? Here, we
-
High-Order Van Hove Singularities and Their Connection to Flat Bands Annu. Rev. Condens. Matter Phys. (IF 14.3) Pub Date : 2024-11-15 Laura Classen, Joseph J. Betouras
The flattening of single-particle band structures plays an important role in the quest for novel quantum states of matter owing to the crucial role of interactions. Recent advances in theory and experiment made it possible to construct and tune systems with nearly flat bands, ranging from graphene multilayers and moiré materials to kagome metals and ruthenates. Although theoretical models predict exactly
-
Transverse Quantum Superfluids Annu. Rev. Condens. Matter Phys. (IF 14.3) Pub Date : 2024-11-13 Anatoly Kuklov, Lode Pollet, Nikolay Prokof’ev, Boris Svistunov
Even when ideal solids are insulating, their states with crystallographic defects may have superfluid properties. It became clear recently that edge dislocations in 4He featuring a combination of microscopic quantum roughness and superfluidity of their cores may represent a new paradigmatic class of quasi-one-dimensional superfluids. The new state of matter, termed transverse quantum fluid (TQF), is
-
A Primer on Stochastic Partial Differential Equations with Spatially Correlated Noise Annu. Rev. Condens. Matter Phys. (IF 14.3) Pub Date : 2024-11-11 Katherine A. Newhall
With the growing number of microscale devices from computer memory to microelectromechanical systems, such as lab-on-a-chip biosensors and the increased ability to experimentally measure at the micro- and nanoscale, modeling systems with stochastic processes is a growing need across science. In particular, stochastic partial differential equations (SPDEs) naturally arise from continuum models—for example
-
Interconnected skyrmions in a nanowire structure: Micromagnetic simulations Phys. Rev. B (IF 3.2) Pub Date : 2024-11-08 Taichi Nishitani, Syuta Honda, Hiroyoshi Itoh, Tomokatsu Ohsawa, Masaaki A. Tanaka
The magnetization dynamics of two skyrmions with antiparallel vortex rotations on a nanowire substrate were investigated using micromagnetic simulations. When positioned in proximity, the skyrmions exhibit attractive interactions that decrease their separation distance. This interaction leads to a magnetic energy transition, resulting in the fusion of the two skyrmions into a single connected entity
-
Superconductivity and strain-enhanced phase stability of Janus tungsten chalcogenide hydride monolayers Phys. Rev. B (IF 3.2) Pub Date : 2024-11-08 Jakkapat Seeyangnok, Udomsilp Pinsook, Graeme J. Ackland
Janus transition metal-dichalcogenide materials have attracted a great deal of attention due to their remarkable physical properties arising from the two-dimensional geometry and the breakdown of the out-of-plane symmetry. Using first-principles density functional theory, we investigated the phase stability, strain-enhanced phase stability, and superconductivity of Janus WSeH and WSH. In addition,
-
Spin-deformation coupling in two-dimensional polar materials Phys. Rev. B (IF 3.2) Pub Date : 2024-11-08 J. A. Sánchez-Monroy, Carlos Mera Acosta
The control of the spin degree of freedom is at the heart of spintronics, which can potentially be achieved by spin-orbit coupling or band topological effects. In this paper, we explore another potential controlled mechanism under debate: the spin-deformation coupling (SDC)—the coupling between intrinsic or extrinsic geometrical deformations and the spin degree of freedom. We focus on polar-deformed
-
Two-dimensional higher-order topological metals Phys. Rev. B (IF 3.2) Pub Date : 2024-11-08 Lizhou Liu, Cheng-Ming Miao, Qing-Feng Sun, Ying-Tao Zhang
We investigate the energy band structure and energy levels of graphene with staggered intrinsic spin-orbit coupling and in-plane Zeeman fields. Our study demonstrates that staggered intrinsic spin-orbit coupling induces bulk band crossover at the 𝐾 and 𝐾′ valleys and generates antihelical edge states at the zigzag boundaries, resulting in topological metallic phases. Quantized transport coefficients
-
Absorption of electromagnetic waves in a screened two-dimensional electron system Phys. Rev. B (IF 3.2) Pub Date : 2024-11-08 V. M. Muravev, I. V. Andreev, N. D. Semenov, P. A. Gusikhin, I. V. Kukushkin
We studied the absorption of microwave electromagnetic radiation incident normal to a two-dimensional electron system on a dielectric substrate with a metallic back reflector. We have shown that the presence of a back gate strongly modifies the spectrum of plasmon polaritons in such a structure. We observe a transverse plasmon mode which starts from zero frequency at zero magnetic field and follows
-
Melting and transport properties ofAl2O3at extreme conditions Phys. Rev. B (IF 3.2) Pub Date : 2024-11-08 Maitrayee Ghosh, S. X. Hu, Eric Blackman, Terry-Ann Suer, Shuai Zhang
The high-pressure temperature phase diagram and transport properties of materials are of broad interest to planetary sciences and high-energy-density sciences and applications. Alumina (Al2O3) or its various forms (e.g., solutions with other oxides or silicates) are important constituents in Earth's and super-Earths' mantles, common window materials in dynamic compression experiments, and standard
-
Tuning terahertz magnons in a mixed van der Waals antiferromagnet Phys. Rev. B (IF 3.2) Pub Date : 2024-11-08 F. Le Mardelé, I. Mohelsky, D. Jana, A. Pawbake, J. Dzian, W.-L. Lee, K. Raju, R. Sankar, C. Faugeras, M. Potemski, M. E. Zhitomirsky, M. Orlita
Alloying stands out as a pivotal technological method employed across various compounds, be they metallic, magnetic, or semiconducting, serving to fine-tune their properties to meet specific requirements. Ternary semiconductors represent a prominent example of such alloys. They offer fine-tuning of electronic bands, the band gap in particular, thus granting the technology of semiconductor heterostructures
-
Persistent nodal magnon-photon polariton in ferromagnetic heterostructures Phys. Rev. B (IF 3.2) Pub Date : 2024-11-08 Zhuolun Qiu, Xi-Han Zhou, Hanchen Wang, Guang Yang, Tao Yu
Exceptional points with coalescence of eigenvalues and eigenvectors are spectral singularities in the parameter space, achieving which often needs fine-tuning of parameters in quantum systems. We predict a persistent realization of nodal magnon-photon polariton, i.e., a polariton of long wavelength without any gap splitting in a thin ferromagnetic insulator film sandwiched by two normal metals, which
-
Competitive multiple phase transitions and distinct superconducting states in aRe3Ge7single crystal under hydrostatic pressure Phys. Rev. B (IF 3.2) Pub Date : 2024-11-08 Chenglin Li, BinBin Ruan, Qingxin Dong, Pengtao Yang, Guorui Xiao, Tong Shi, Zhaoming Tian, Jianping Sun, Yoshiya Uwatoko, Genfu Chen, Zhi Ren, Gang Wang, Zhian Ren, Bosen Wang, Jinguang Cheng
We report the growth and physical properties of high-quality needle-shaped Re3Ge7 single crystal with various characterizations. It exhibits a gapped metal-insulator (MI)-like phase transition with evident Shubnikov–de Haas oscillation of low-𝑇 electrical resistivity. The superconducting phase diagram was revisited by measuring the electrical resistivity in a cubic anvil cell (CAC) under various
-
On-demand population of Andreev levels by their ionization in the presence of Coulomb blockade Phys. Rev. B (IF 3.2) Pub Date : 2024-11-08 Pavel D. Kurilovich, Vladislav D. Kurilovich, Aleksandr E. Svetogorov, Wolfgang Belzig, Michel H. Devoret, Leonid I. Glazman
A mechanism to deterministically prepare a nanowire Josephson junction in an odd parity state is proposed. The mechanism involves population of two Andreev levels by a resonant microwave drive breaking a Cooper pair, and a subsequent ionization of one of the levels by the same drive. Robust preparation of the odd state is allowed by a residual Coulomb repulsion in the junction. A similar resonant process
-
Derivation of low-energy Hamiltonians for heavy-fermion materials Phys. Rev. B (IF 3.2) Pub Date : 2024-11-08 E. A. Ghioldi, Zhentao Wang, L. M. Chinellato, Jian-Xin Zhu, Yusuke Nomura, Ryotaro Arita, W. Simeth, M. Janoschek, F. Ronning, C. D. Batista
By utilizing a multiorbital periodic Anderson model with parameters obtained from ab initio band structure calculations, combined with degenerate perturbation theory, we derive effective Kondo-Heisenberg and spin Hamiltonians that capture the interaction among the effective magnetic moments. This derivation encompasses fluctuations via both nonmagnetic 4𝑓0 and magnetic 4𝑓2 virtual states, and its
-
Vacancy-induced pseudogap formation in antiferromagneticCr0.86ZnSb Phys. Rev. B (IF 3.2) Pub Date : 2024-11-08 Michael Parzer, Fabian Garmroudi, Herwig Michor, Xinlin Yan, Ernst Bauer, Gerda Rogl, Jiri Bursik, Stephen Cottrell, Raimund Podloucky, Peter Rogl
Structural defects are important for both solid-state chemistry and physics, as they can have a significant impact on chemical stability and physical properties. Here, we identify a vacancy-induced pseudogap formation in antiferromagnetic Cr0.86ZnSb. Cr1−𝑥ZnSb alloys were studied combining efforts of density functional theory (DFT) calculations and experimental methods to elucidate the effect
-
Topology of Weyl semimetal interfaces uncovered by reflection shift Phys. Rev. B (IF 3.2) Pub Date : 2024-11-08 Mou Yang, Qiao He
The reflection point is different from the incident point on the interface between two Weyl semimetals, and a spatial shift happens during the reflection. The reflection shift vector as a function of in-plane wave vector shows vortex structures in the incident pocket (the projection of the isoenergy surface on the junction interface) and on the pocket edge. We propose a topological quantity, which
-
Fully tunable Fano resonances in chiral electronic transport Phys. Rev. B (IF 3.2) Pub Date : 2024-11-08 Ai-Ying Ye, Zhao Yang Zeng
Fano resonance is believed to arise when a direct path interferes with a resonant path. We demonstrate that this is not true for chiral electronic transmission without additional direct paths. To address the Fano effect in chiral electronic transport, we suggest an electronic Mach-Zehnder-Fano interferometer, which integrates a quantum dot into an electronic Mach-Zehnder interferometer. Due to the
-
Sliding- and twist-tunable valley polarization in bilayerNiI2 Phys. Rev. B (IF 3.2) Pub Date : 2024-11-08 Linze Li, Xu Li, Liyan Lin, Dehe Zhang, Mingxing Chen, Di Wu, Yurong Yang
Valley, as an emerging degree of freedom of electron, has attracted extensive attention on account of its huge potential in electronic component technology. Two-dimensional (2D) materials provide an ideal platform for the research of valleytronics. Here, we study the sliding and twist effects on valley of bilayer NiI2 by the first-principles calculations. For a monolayer, spatial inversion symmetry
-
Altermagnetism and superconductivity in a multiorbital𝑡−𝐽model Phys. Rev. B (IF 3.2) Pub Date : 2024-11-08 Anjishnu Bose, Samuel Vadnais, Arun Paramekanti
Motivated by exploring correlated multiorbital altermagnets (AℓMs) we study minimal 𝑡−𝐽 models on the square-octagon lattice, which favors such a collinear magnetic order. While antiferromagnetic order breaks translational and time-reversal symmetries, the AℓM state (equivalently, a “𝑑-wave ferromagnet”) features multipolar order, which separately breaks time-reversal and crystal rotation symmetries
-
Nonlinear ac Hall effect in two-dimensional superconductors Phys. Rev. B (IF 3.2) Pub Date : 2024-11-08 K. Sonowal, A. V. Parafilo, V. M. Kovalev, I. G. Savenko
We propose a nonlinear ac Hall effect in two-dimensional BCS single-band superconductors. Namely, a nonlinear ac transverse Hall current emerges in the superconductor interacting with an incident polarized light if a built-in dc supercurrent is present in the system. Applying the nonequilibrium Keldysh diagram technique, we calculate an ac Hall current density oscillating at double the electromagnetic
-
Angle-resolved photoelectron spectroscopy of the(8.88×8.88)incommensurate surface reconstruction of Cu on Ge(111) Phys. Rev. B (IF 3.2) Pub Date : 2024-11-08 Mathis Cameau, Tristan Cren, Pascal David, François Debontridder, Natalia Olszowska, Marcin Rosmus, Mathieu G. Silly, Marie D'angelo
In this study we revisit the properties of the (″8.88×8.88″)R30∘ surface reconstruction obtained by evaporation of Cu on Ge(111), motivated by the predictions of Dirac nodal lines in two-dimensional Cu2Ge monolayer. After providing an updated version of the band structure of Ge(111) by angle-resolved photoemission (ARPES), we present the band structure of the Cu/Ge(111)−(8.88×8.88)R30∘ surface
-
Neural network enabled molecular dynamics study ofHfO2phase transitions Phys. Rev. B (IF 3.2) Pub Date : 2024-11-07 Sebastian Bichelmaier, Jesús Carrete, Georg K. H. Madsen
The advances of machine-learned force fields have opened up molecular dynamics (MD) simulations for compounds for which ab initio MD is too resource intensive and phenomena for which classical force fields are insufficient. Here we describe a neural-network force field parametrized to reproduce the r2SCAN potential energy landscape of HfO2. Based on an automatic differentiable implementation of the
-
Ga vacancies as dominant intrinsic acceptors in Sn-doped𝛽−Ga2O3revealed by positron annihilation spectroscopy Phys. Rev. B (IF 3.2) Pub Date : 2024-11-07 Y. H. Li, Y. Dong, G. W. Xu, Y. Z. Bu, Q. L. Sai, H. J. Qi, S. B. Long, Z. Q. Chen, B. J. Ye, H. J. Zhang
The conductive properties and defect structure of Sn-doped 𝛽−Ga2O3 bulk materials with different Sn concentrations are studied in this work. The calculations and experiments of positron annihilation spectroscopy clarify the existence of Ga monovacancies of high concentrations in these semiconductors. The temperature dependencies of positron annihilation parameters and the linear relationship between
-
Microscopic theory of spin Nernst effect Phys. Rev. B (IF 3.2) Pub Date : 2024-11-07 Junji Fujimoto, Taiki Matsushita, Masao Ogata
We present the microscopic theory of the spin Nernst effect, which is a transverse spin current directly induced by a temperature gradient, employing the linear response theory with Luttinger's gravitational potential method. We consider a generic, noninteracting electron system with randomly distributed impurities and evaluate the spin current response to the gravitational potential. Our theory takes
-
Topological magnon in exchange frustration driven incommensurate spin spiral of kagome-latticeYMn6Sn6 Phys. Rev. B (IF 3.2) Pub Date : 2024-11-07 Banasree Sadhukhan, Anders Bergman, Patrik Thunström, Manuel Pereiro Lopez, Olle Eriksson, Anna Delin
YMn6Sn6 consists of two types of Mn-based kagome planes stacked along the 𝑐-axis having a complex magnetic interaction. We report a spin reconstruction in YMn6Sn6 from ferromagnetic (FM) into a combination of two incommensurate spin spirals (SSs) originating from two different types of Mn kagome planes driven by frustrated magnetic exchanges along the 𝑐-axis with the inclusion of the Hubbard 𝑈
-
Excitation of fundamental multiple dark solitons from forced biharmonic oscillations in a magnonic active ring Phys. Rev. B (IF 3.2) Pub Date : 2024-11-07 Alexey B. Ustinov, Leonid S. Vedernikov, Ivan Y. Tatsenko, Andrey A. Stashkevich
This paper reports an experimental demonstration of efficient excitation of fundamental dark spin wave solitons on a magnonic active ring below self-oscillation threshold by means of a biharmonic technique. This technique is shown to be especially appropriate for implementing multisoliton regimes otherwise unattainable. Theoretical analysis has revealed a very important role played by the phase relations
-
Raman spectroscopic study onBi2Rh3Se2: Two-dimensional Ising charge density wave and quantum fluctuations Phys. Rev. B (IF 3.2) Pub Date : 2024-11-07 Fei Jiao, Yonghui Zhou, Shuyang Wang, Chao An, Xuliang Chen, Ying Zhou, Min Zhang, Liang Cao, Xigang Luo, Yimin Xiong, Zhaorong Yang
The ternary chalcogenide Bi2Rh3Se2 was found to be a charge density wave (CDW) superconductor with a 2×2 periodicity. The key questions regarding the underlying mechanism of CDW state and its interplay with lattice and electronic properties remain to be explored. Here, based on the systematic Raman scattering investigations on single-crystalline Bi2Rh3Se2, we observed the fingerprinting feature
-
Relationship between orbital moment anisotropy, magnetocrystalline anisotropy, and Dzyaloshinskii-Moriya interaction in W/Co/Pt trilayers Phys. Rev. B (IF 3.2) Pub Date : 2024-11-07 Zhendong Chi, Yong-Chang Lau, Vanessa Li Zhang, Goro Shibata, Shoya Sakamoto, Yosuke Nonaka, Keisuke Ikeda, Yuxuan Wan, Masahiro Suzuki, Masashi Kawaguchi, Masako Suzuki-Sakamaki, Kenta Amemiya, Naomi Kawamura, Masaichiro Mizumaki, Motohiro Suzuki, Hyunsoo Yang, Masamitsu Hayashi, Atsushi Fujimori
We have studied the Co layer thickness dependences of magnetocrystalline anisotropy (MCA), Dzyaloshinskii-Moriya interaction (DMI), and orbital moment anisotropy (OMA) in W/Co/Pt trilayers, in order to clarify their correlations with each other. We find that the MCA favors magnetization along the film normal and monotonically increases with decreasing effective magnetic layer thickness (𝑡eff). The
-
Magnetism and field-induced effects in the𝑆=52honeycomb lattice antiferromagnetFeP3SiO11 Phys. Rev. B (IF 3.2) Pub Date : 2024-11-07 J. Khatua, M. Gomilšek, Kwang-Yong Choi, P. Khuntia
Quantum magnets based on honeycomb lattices with a low coordination number offer a viable ground to realize exotic emergent quantum excitations and phenomena arising from the interplay between competing magnetic interactions, spin correlations, and spatial anisotropy. However, unlike their low-spin analogs, high-spin honeycomb lattice antiferromagnets have remained comparatively less explored in the
-
Limitations of Caldeira-Leggett model for description of phase transitions in superconducting circuits Phys. Rev. B (IF 3.2) Pub Date : 2024-11-07 O. Kashuba, R.-P. Riwar
-
Effect of correlated disorder on superconductivity in a kagome lattice: A Bogoliubov–de Gennes analysis Phys. Rev. B (IF 3.2) Pub Date : 2024-11-07 Ravi Kiran, Sudipta Biswas, Monodeep Chakraborty
This paper investigates the superconducting properties of a two-dimensional 𝑠-wave superconductor on a kagome lattice subjected to correlated disorder. Using the Bogoliubov–de Gennes theory, we analyze the impact of disorder correlations on superconducting behavior. Additionally, we derive the stiffness formula for the kagome lattice and calculate its superfluid stiffness. An intriguing finding of
-
Spin orbital lattice entanglement in the ideal𝑗=12compoundK2IrCl6 Phys. Rev. B (IF 3.2) Pub Date : 2024-11-07 P. Warzanowski, M. Magnaterra, Ch. J. Sahle, M. Moretti Sala, P. Becker, L. Bohatý, I. Císařová, G. Monaco, T. Lorenz, P. H. M. van Loosdrecht, J. van den Brink, M. Grüninger
-
Tunable surface electron gas and effect of phonons inSr2CuO3: A first-principles study Phys. Rev. B (IF 3.2) Pub Date : 2024-11-07 Xin Du, Hui-Hui He, Xiao-Xiao Man, Zhong-Yi Lu, Kai Liu
While the conducting CuO2 planes in cuprate superconductors have been widely recognized as a crucial component in producing high superconducting 𝑇c, recent experimental and theoretical studies on Ba2−𝑥Sr𝑥CuO3+𝛿 have also drawn much attention to the importance of Cu-O chains in one-dimensional (1D) cuprates. To better understand the cuprates containing Cu-O chains, here we have studied the electronic
-
Insulator-to-insulator transition and sign problem in the periodic Anderson model with a staggered potential Phys. Rev. B (IF 3.2) Pub Date : 2024-11-07 Mengfan Wang, Danqing Hu, Yi-feng Yang
Motivated by the recent proposal that the Monte Carlo sign problem might be used as an indicator of quantum phase transitions, we simulate the periodic Anderson model at half-filling with a staggered ionic potential using the determinant quantum Monte Carlo (DQMC) approach. We observe a phase transition from a band insulator to a Kondo insulator as the hybridization increases. At finite temperature
-
Ferromagnetic ferroelectricity due to the Kugel-Khomskii mechanism of orbital ordering assisted by atomic Hund's second rule effects Phys. Rev. B (IF 3.2) Pub Date : 2024-11-07 I. V. Solovyev, R. Ono, S. A. Nikolaev
-
Thermodynamics of strain engineering in𝑅NiO3(𝑅=Sm,Nd) Phys. Rev. B (IF 3.2) Pub Date : 2024-11-07 Yin Shi, Long-Qing Chen
Perovskite rare-earth nickelates are a prototypical class of quantum materials that exhibit rich phase-transition physics with promising applications in neuromorphic computing. Although there is existing experimental evidence demonstrating that strain may strongly influence the phase transitions of nickelate thin films, it would be extremely challenging to experimentally construct temperature-strain
-
Electronic topological transitions in cadmium under pressure studied via theoretical and experimental x-ray absorption spectroscopy Phys. Rev. B (IF 3.2) Pub Date : 2024-11-07 Jasmine K. Hinton, Daniel Schacher, Wonseok Lee, G. Alexander Smith, Emily Siska, Changyong Park, Paul B. Ellison, Scott K. Cushing, Craig P. Schwartz, Keith V. Lawler, Ashkan Salamat
An electronic topological transition (ETT) in cadmium below 1 GPa is investigated in situ with experimental x-ray absorption spectroscopy and projecting calculated core-valence excitons onto the band structure. These projections are a useful application of the Bethe-Salpeter equation approach that considers many-body effects. The method described herein can be used for systems that are otherwise difficult
-
Poor man's Majorana edge mode enabled by specular Andreev reflection Phys. Rev. B (IF 3.2) Pub Date : 2024-11-07 C. W. J. Beenakker
-
Circular dichroism experiments at the𝐿edge of magnetic transition metals enabled by elliptically polarized pulses from a seeded free-electron laser Phys. Rev. B (IF 3.2) Pub Date : 2024-11-06 C. Spezzaniet al.
-
Begrenzung effect inSi3N4encapsulated plasmonic Sn nanoparticles Phys. Rev. B (IF 3.2) Pub Date : 2024-11-06 Chloé Minnai, Andrea Vanzan, Luke C. Reidy, Alec P. LaGrow, Marcel Di Vece
Previous studies of metal nanoparticle plasmonic properties yielded various nontrivial effects beyond the simple dipole response to light, such as the higher-order plasmon modes and dark and bright localized surface plasmons. Another intriguing plasmonic effect is the reduction of bulk plasmon (BP) resonances strength due to the Begrenzung effect, a phenomenon of the BP resonance modifications at the
-
In-plane sliding ferroelectricity and piezoelectricity in bilayer and trilayer𝑔−C3N4 Phys. Rev. B (IF 3.2) Pub Date : 2024-11-06 Yuhua Wei, Zuhui Hu, Xiaonan Ma, Haotian Wang, Feng Gao, Xiaoxuan Ma, Yin Wang, Wei Ren
The graphenelike form of carbon nitride is known as 𝑔−C3N4, a single sheet of which may be composed of an 𝑠-triazine (𝑆-type) or tri-𝑠-triazine (𝑇-type) periodic lattice with a different size of hole. By employing the first-principles calculation, we find that the difference in the out of plane polarization caused by the symmetry breaking of the 𝑆-type or 𝑇-type structure of bilayer 𝑔−C3N4
-
Inflation rules for a chiral pentagonal quasiperiodic tiling of stars and hexes Phys. Rev. B (IF 3.2) Pub Date : 2024-11-06 Viacheslav A. Chizhikov
Hexagon-boat-star (HBS) pentagonal tilings often appear in the description of decagonal quasicrystals and their periodic approximants. Being related to the Penrose tiling, they differ from the latter by a significantly higher packing density of vertices, which, in turn, depends on the relative frequency of appearance of the H, B and S tiles. Since boats (also known as “ivy leaves”) have the lowest
-
Bilayer stacking𝐴-type altermagnet: A general approach to generating two-dimensional altermagnetism Phys. Rev. B (IF 3.2) Pub Date : 2024-11-06 Sike Zeng, Yu-Jun Zhao
In this paper, we propose a concept of bilayer stacking 𝐴-type altermagnet (BSAA), in which two identical ferromagnetic monolayers are stacked with antiferromagnetic coupling to form a two-dimensional (2D) 𝐴-type altermagnet. By solving the stacking model, we derive all BSAAs for all layer groups and draw three key conclusions: (i) Only 17 layer groups can realize intrinsic 𝐴-type altermagnetism
-
Observation of merged Fabry-Perot bound states in the continuum within an underwater phononic crystal Phys. Rev. B (IF 3.2) Pub Date : 2024-11-06 Yuzhen Yang, Han Jia, Yunhan Yang, Ping Zhou, Jun Yang
Resonant modes within phononic crystals exhibit remarkable capabilities for the effective control of acoustic waves. In this study, we examine an underwater system comprising bilayer periodic polymethyl methacrylate rods and investigate the behaviors of Fabry-Perot bound states in the continuum (BICs) by adjusting the interlayer spacing parameter and the side length of rectangular rods. Additionally
-
Resonances, mobility edges, and gap-protected Anderson localization in generalized disordered mosaic lattices Phys. Rev. B (IF 3.2) Pub Date : 2024-11-06 Stefano Longhi
Mosaic lattice models have been recently introduced as a special class of disordered systems displaying resonance energies, multiple mobility edges, and anomalous transport properties. In such systems on-site potential disorder, either uncorrelated or incommensurate, is introduced solely at every equally spaced site within the lattice, with a spacing 𝑀≥2. A remarkable property of disordered mosaic
-
Strongly interacting bosons in a one-dimensional disordered lattice: Phase coherence of distorted Mott phases Phys. Rev. B (IF 3.2) Pub Date : 2024-11-06 Barnali Chakrabarti, Arnaldo Gammal, Luca Salasnich
We explore the consequences of disorder on phase coherence in the Mott insulator phases in an optical lattice. Few bosons with contact interaction in small optical lattice can feature varieties of insulating phases—weakly interacting Mott in deep lattice, maximally fragmented and strongly interacting Mott in intermediate lattice, weak Mott with double filling and intrawell coherence, fermionized Mott
-
Higher-bracket structure of density operators in Weyl fermion systems and topological insulators Phys. Rev. B (IF 3.2) Pub Date : 2024-11-06 Edwin Langmann, Shinsei Ryu, Ken Shiozaki
We study the algebraic structure of electron density operators in gapless Weyl fermion systems in 𝑑=3,5,7,⋯ spatial dimensions and in topological insulators (without any protecting symmetry) in 𝑑=4,6,8,⋯ spatial dimensions. These systems are closely related by the celebrated bulk-boundary correspondence. Specifically, we study the higher bracket—a generalization of commutator for more than two operators—of
-
Superlattice-induced electron percolation within a single Landau level Phys. Rev. B (IF 3.2) Pub Date : 2024-11-06 Nilanjan Roy, Bo Peng, Bo Yang
We investigate the quantum Hall effect in a single Landau level in the presence of a square superlattice of 𝛿-function potentials. The interplay between the superlattice spacing 𝑎𝑠 and the magnetic length ℓ𝐵 in a clean system leads to three interesting characteristic regimes corresponding to 𝑎𝑠<ℓ𝐵, 𝑎𝑠≫ℓ𝐵, and the intermediate one where 𝑎𝑠∼ℓ𝐵. In the intermediate regime, the continuous
-
Pinch points and half moons encode Berry curvature Phys. Rev. B (IF 3.2) Pub Date : 2024-11-06 Han Yan (闫寒), Judit Romhányi, Andreas Thomasen, Nic Shannon
“Half moons,” distinctive crescent patterns in the dynamical structure factor, have been identified in inelastic neutron scattering experiments for a wide range of frustrated magnets. In an earlier paper [H. Yan et al., Phys. Rev. B 98, 140402(R) (2018)] we have shown how these features are linked to the local constraints realized in classical spin liquids. Here, we explore their implication for the
-
Origin of the charge density wave state inBaFe2Al9 Phys. Rev. B (IF 3.2) Pub Date : 2024-11-06 Yuping Li, Mingfeng Liu, Jiangxu Li, Jiantao Wang, Junwen Lai, Dongchang He, Ruizhi Qiu, Yan Sun, Xing-Qiu Chen, Peitao Liu
Recently, a first-order phase transition associated with charge density wave (CDW) has been observed at low temperatures in intermetallic compound BaFe2Al9. However, this transition is absent in its isostructural sister compound BaCo2Al9. Consequently, an intriguing question arises as to the underlying factors that differentiate BaFe2Al9 from BaCo2Al9 and drive the CDW transition in BaFe2Al9.
-
Nonlinear anomalous transverse responses induced by the Berry curvature quadrupole in systems with broken time-reversal symmetry Phys. Rev. B (IF 3.2) Pub Date : 2024-11-06 Srimayi Korrapati, Snehasish Nandy, Sumanta Tewari
Recent theoretical work has shown that higher-order moments of the Berry curvature, e.g., Berry curvature quadrupole and hexapole moments, can produce the leading order nonlinear anomalous Hall response (NLAH) in systems with special magnetic point group symmetry. Recent experimental work has reported the observation of the Berry curvature quadrupole-induced third-order NLAH (i.e., Hall voltage proportional
-
Fermi liquid near a𝑞=0charge quantum critical point Phys. Rev. B (IF 3.2) Pub Date : 2024-11-06 R. David Mayrhofer, Andrey V. Chubukov, Peter Wölfle
We analyze the quasiparticle interaction function (the fully dressed and antisymmetrized interaction between fermions) for a two-dimensional Fermi liquid at zero temperature close to a q=0 charge quantum critical point (QCP) in the 𝑠−wave channel (the one leading to phase separation). By the Ward identities, this vertex function must be related to quasiparticle residue 𝑍, which can be obtained independently
-
Interplay between Dirac and Rashba surface states specific for topologically nontrivial van der Waals superlattices Phys. Rev. B (IF 3.2) Pub Date : 2024-11-06 I. A. Shvets, E. V. Chulkov, S. V. Eremeev
Here we show that, in contrast to the observed surface states in well studied pnictogen chalcogenide van der Waals (vdW) topological insulators with quintuple layer (QL) or septuple layer (SL) structure, in superlattices, comprising the alternating QL and SL vdW blocks, the Dirac state becomes accompanied by emergent spin-polarized states of the Rashba type. This specific feature is caused by an inequivalence
-
Impurity-induced Friedel oscillations in altermagnets and𝑝-wave magnets Phys. Rev. B (IF 3.2) Pub Date : 2024-11-06 Pavlo Sukhachov, Jacob Linder
We investigate the Friedel oscillations of the local density of states (LDOS) induced by a single impurity with both a spin-independent potential and an exchange coupling to the electrons in altermagnets and unconventional 𝑝-wave magnets. We identify features that make the Friedel oscillations and magnetization distinct from other materials with nontrivial spin texture such as Rashba metals. Because