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成果及论文
Selected publications:

  1.  L. Zhu*, Q. Liu, and Xiangrong Wang*，Physics Origin of Universal Unusual Magnetoresistance, arXiv:2410.23543 (2024).

  2. Q. Liu, L. Liu, G. Xing, L. Zhu*, Asymmetric magnetization switching and programmable complete Boolean logic enabled by long-range intralayer Dzyaloshinskii-Moriya interaction, Nat. Commun. 15, 2978 (2024).https://doi.org/10.1038/s41467-024-47375-5.

  3. Q. Liu, X. Lin, Z. Nie, G. Yu, L. Zhu*, Efficient generation of out-of-plane polarized spin current in polycrystalline heavy metal devices with broken electric symmetries, Adv. Mater. 36, 2406552 (2024).  https://doi.org/10.1002/adma.202406552.

  4. L. Zhu*, D.C. Ralph，Strong variation of spin-orbit torques with relative spin relaxation rates in ferrimagnets, Nat. Commun. 14, 1778 (2023).

  5. L. Zhu*, Switching of Perpendicular Magnetization by Spin-Orbit Torque, Adv. Mater. 35, 2300853 (2023). 
  6. X. Lin, L.Zhu, Q.Liu, L. Zhu*,Giant, Linearly Increasing Spin−Orbit Torque Efficiency in Symmetry-Broken Spin−Orbit Torque Superlattices, Nano Lett. 23, 9420 (2023).
  7. Q. Liu, X. Lin, L. Zhu*, Absence of Spin-Orbit Torque and Discovery of Anisotropic Planar Nernst Effect in CoFe Single Crystal, Adv. Sci. 10, 2301409 (2023).
  8. X. Lin, L. Zhu*, A Two-Field-Scan Harmonic Hall Voltage Analysis For Fast, Accurate Quantification Of Spin-Orbit Torques In Magnetic Heterostructures, Sci. China-Phys. Mech. Astron. 67, 107511 (2024). 
  9. L. Zhu*,  David Lujan, Xiaoqin Li, Discovery of strong bulk Dzyaloshinskii-Moriya interaction in composition-uniform centrosymmetric magnetic single layers, Sci. China-Phys. Mech. Astron., 67, 227511 (2024).
  10. L. Zhu*, L. Zhu, X. Ma, X. Li, R. A. Buhrman, Critical role of orbital hybridization in Dzyaloshinskii-Mariya interaction of magnetic interfaces, Communications Physics 5, 151 (2022).
  11. Q. Liu, L. Zhu*, X. S. Zhang, D.A. Muller, D.C. Ralph, Giant bulk spin–orbit torque and efficient electrical switching in single ferrimagnetic FeTb layers with strong perpendicular magnetic anisotropy, Appl. Phys. Rev.  9, 021402 (2022).
  12.  Q. Liu, L. Zhu*, Current-induced perpendicular effective magnetic field in magnetic heterostructures, Appl. Phys. Rev.  9, 041401 (2022).
  13. L. Zhu*, L. Zhu, R. A. Buhrman, Fully spin-transparent magnetic interfaces enabled by insertion of a thin paramagnetic NiO layer, Phys. Rev. Lett. 126, 107204 (2021).
  14. L. Zhu*, D. C. Ralph, R. A. Buhrman, Maximizing Spin-Orbit Torque Generated by the Spin Hall Effect of Pt, Appl. Phys. Rev. 8, 031308 (2021).
  15. L. Zhu*, D. C. Ralph, R. A. Buhrman, Unveiling the mechanism of bulk spin-orbit torques within chemically disordered FexPt1-x single layers, Adv. Funct. Mater. 31, 2103898 (2021).
  16.   L. Zhu*, X. S. Zhang, D. A. Muller, D. C. Ralph, R. A. Buhrman, Observation of strong bulk damping-like spin-orbit torque in chemically disordered ferromagnetic single layers, Adv. Funct. Mater. 30, 2005201 (2020).
  17. L. Zhu*, L. Zhu, M. Sui, D. C. Ralph, R. A. Buhrman, Variation of the giant spin Hall conductivity of Pt with carrier lifetime, Sci. Adv. 5, eaav8025 (2019).
  18.  L. Zhu*, D. C. Ralph, R. A. Buhrman, Effective spin mixing conductance of the heavy-metal- ferromagnet interfaces, Phys. Rev. Lett. 123, 057203 (2019).
  19. L. Zhu*, D. C. Ralph, R. A. Buhrman, Spin-orbit torques in heavy-metal-ferromagnet bilayers with varying strengths of interfacial spin-orbit coupling, Phys. Rev. Lett. 122, 077201 (2019).
  20. L. Zhu*, K. Sobotkiewich, X. Ma, X. Li, D. C. Ralph, R. A. Buhrman*, Strong and tunable anti-damping spin-orbit torque and Dzyaloshinskii-Moriya interaction generated by low-resistivity Pd1-xPtx alloys, Adv. Funct. Mater. 29, 1805822 (2019).
  21. L. J. Zhu, S.H. Nie, P. Xiong, P. Schlottmann, J. H. Zhao*, Orbital two-channel Kondo effect in epitaxial ferromagnetic L10-MnAl films, Nat. Commun. 7, 10817 (2016).
  22. L. J. Zhu, S.H. Nie, K.K. Meng, D. Pan, J.H. Zhao*, H.Z. Zheng, Multifunctional L10-Mn1.5Ga Films with ultrahigh coercivity, giant perpendicular magnetocrystalline anisotropy and large magnetic energy product, Adv. Mater., 24, 4547 (2012).


Full list of publications:

2024

  1.  L. Zhu*, Q. Liu, and Xiangrong Wang*，Physics Origin of Universal Unusual Magnetoresistance, arXiv:2410.23543 (2024).
  2. Q. Liu, L. Liu, G. Xing, L. Zhu*, Asymmetric magnetization switching and programmable complete Boolean logic enabled by long-range intralayer Dzyaloshinskii-Moriya interaction, Nat. Commun. 15, 2978 (2024).https://doi.org/10.1038/s41467-024-47375-5.
  3. Q. Liu, X. Lin, Z. Nie, G. Yu, L. Zhu*, Efficient generation of out-of-plane polarized spin current in polycrystalline heavy metal devices with broken electric symmetries, Adv. Mater. 36, 2406552 (2024).  https://doi.org/10.1002/adma.202406552.
  4. L. Zhu*,  David Lujan, Xiaoqin Li, Discovery of strong bulk Dzyaloshinskii-Moriya interaction in composition-uniform centrosymmetric magnetic single layers, Sci. China-Phys. Mech. Astron. 67, 227511 (2024). https://www.sciengine.com/SCPMA/doi/10.1007/s11433-023-2232-2
  5. X. Lin,  L. Zhu*, A Two-Field-Scan Harmonic Hall Voltage Analysis For Fast, Accurate Quantification Of Spin-Orbit Torques In Magnetic Heterostructures, Sci. China-Phys. Mech. Astron. 67, 107511 (2024). 
  6. L. Zhu*,  Discovery of novel spin-orbit effects for magnetization manipulation, Spintronics XVII 13119, 131190C (2024). https://doi.org/10.1117/12.3025435.
  7. 朱礼军，刘前标，具有手性垂直磁场的磁性异质结构、存储器及逻辑器, 中国专利，202410584908.5
  8. 朱礼军，林鑫，自旋轨道矩测量方法,  中国专利，202410584913.6


2023

  1. L. Zhu*, D.C. Ralph, Strong variation of spin-orbit torques with relative spin relaxation rates in ferrimagnets, Nat. Commun. 14, 1778 (2023).
  2. L. Zhu*, Switching of Perpendicular Magnetization by Spin-Orbit Torque, Adv. Mater. 35, 2300853 (2023). 
  3. X. Lin, L.Zhu, Q.Liu, L. Zhu*,Giant, Linearly Increasing Spin−Orbit Torque Efficiency in Symmetry-Broken Spin−Orbit Torque Superlattices, Nano Lett. 23, 9420 (2023).
  4. Q. Liu, X. Lin, L. Zhu*, Absence of Spin-Orbit Torque and Discovery of Anisotropic Planar Nernst Effect in CoFe Single Crystal, Adv. Sci. 10, 2301409 (2023).
  5. D. Wang, R. Tang, H. Lin, L. Liu, N. Xu, Y. Sun, X. Zhao, Z. Wang, D. Wang, Z. Mai, Y. Zhou, N. Gao, C. Song, L. Zhu, T. Wu, M. Liu, G. Xing,Spintronic leaky-integrate-fire spiking neurons with self-reset and winner-takes-all for neuromorphic computing, Nat. Commun. 14, 1068 (2023).
  6.  X. Lin, L. Zhu*，Magnetization switching in van der Waals systems by spin-orbit torque, Materials Today Electronics 4, 100037 (2023).
  7. L. Zhu*, Lujun Zhu, Qianbiao Liu, Xin Lin, Giant coercivity, resistivity upturn, and anomalous Hall effect in ferrimagnetic FeTb, Phys. Rev. B 108, 014420 (2023).

2022

  1.  Q. Liu, L. Zhu*, Current-induced perpendicular effective magnetic field in magnetic heterostructures, Appl. Phys. Rev.  9, 041401 (2022). https://doi.org/10.1063/5.0116765
  2. Q. Liu, L. Zhu*, X. S. Zhang, D.A. Muller, D.C. Ralph, Giant bulk spin–orbit torque and efficient electrical switching in single ferrimagnetic FeTb layers with strong perpendicular magnetic anisotropy, Appl. Phys. Rev.  9, 021402 (2022). https://doi.org/10.1063/5.0087260
  3. L. Zhu*, L. Zhu, X. Ma, X. Li, R. A. Buhrman, Critical role of orbital hybridization in Dzyaloshinskii-Mariya interaction of magnetic interfaces, Communications Physics 5, 151 (2022). https://doi.org/10.1038/s42005-022-00932-0

  4. L. Zhu*, Jingwei Li, Lujun Zhu, and Xinyue Xie, Boosting spin-orbit-torque efficiency in spin-current-generator/magnet/oxide superlattices,  Phys. Rev. Applied 18, 064052 (2022), https://doi.org/10.1103/PhysRevApplied.18.064052

  5. Qianbiao Liu, Jingwei Li, Lujun Zhu, Xin Lin, Xinyue Xie, and L. Zhu*, Strong Spin-Orbit Torque Induced by the Intrinsic Spin Hall Effect in Cr1−xPtx,  Phys. Rev. Applied 18, 054079 (2022). https://doi.org/10.1103/PhysRevApplied.18.054079

  6. Xin Lin, Jingwei Li, Lujun Zhu, Xinyue Xie, Qianbiao Liu, Dahai Wei, Guodong Yuan, and L. Zhu*, Strong enhancement of spin-orbit torques in ferrimagnetic Ptx(Si3N4)1–x/CoTb bilayers by Si3N4 doping, Phys. Rev. B 106, L140407 (2022). https://doi.org/10.1103/PhysRevB.106.L140407

  7. 朱礼军，刘前标，垂直磁各向异性磁隧道结及磁阻式随机存储器，中国专利，202210803247 .1

  8. 朱礼军，自旋轨道矩超晶格材料、磁赛道器件、磁隧道结器件，中国专利，CN202211263865.8

  9. 朱礼军，林鑫，制备铂基高自旋霍尔角材料的方法、合金薄膜及应用，中国专利，202211258641.8

  10. R. A. Buhrman, Lijun Zhu, Giant enhancement of spin-orbit torque by interface scattering from ultra-thin insertion layers, US Patent, 授权号 11444240（2022）.

2021 and earlier

  1.  L. Zhu*, D. C. Ralph, R. A. Buhrman, Maximizing Spin-Orbit Torque Generated by the Spin Hall Effect of Pt, Applied Physics Review 8, 031308 (2021).
  2.  L. Zhu*, D. C. Ralph, R. A. Buhrman, Unveiling the mechanism of bulk spin-orbit torques within chemically disordered FexPt1-x single layers, Advanced Functional Materials 31, 2103898 (2021).
  3.   L. Zhu*, L. Zhu, R. A. Buhrman, Fully spin-transparent magnetic interfaces enabled by insertion of a thin paramagnetic NiO layer, Physical Review Letters 126, 107204 (2021).
  4.  L. Zhu* and R. A. Buhrman, Absence of significant spin current generation in Ti/FeCoB bilayers with strong interfacial spin-orbit coupling, Physical Review Applied 15, L031001 (2021)(Letter).
  5.   L. Zhu*, D. C. Ralph, and R. A. Buhrman, Lack of Simple Correlation between Switching Current Density and Spin-Orbit-Torque Efficiency of Perpendicularly Magnetized Spin-Current-Generator–Ferromagnet Heterostructures, Physical Review Applied 15, 024059 (2021).
  6.   L. Zhu*, D.C. Ralph, R.A. Buhrman, Switching Current Density of Perpendicular Magnetization by Spin-Orbit Torque, 2021 IEEE 32nd Magnetic Recording Conference (TMRC), DOI: 10.1109/ TMRC53175.2021.9605123 (2021).
  7. L. Zhu*, X. S. Zhang, D. A. Muller, D. C. Ralph, R. A. Buhrman, Observation of strong bulk damping-like spin-orbit torque in chemically disordered ferromagnetic single layers, Advanced Functional Materials, 30, 2005201 (2020).
  8. L. Zhu*, L. Zhu, D. C. Ralph, R. A. Buhrman, Origin of Strong Two-Magnon Scattering in Heavy-Metal/ Ferromagnet/Oxide Heterostructures, Physical Review Applied 13, 034038 (2020).
  9.   L. Zhu*, L. Zhu, S. Shi, D. C. Ralph, R. A. Buhrman, Energy-efficient ultrafast SOT-MRAMs based on low-resistivity spin Hall metal Au0.25Pt0.75, Advanced Electronic Materials 6, 1901131 (2020).
  10. X. Zhang, E. Padgett, L. Zhu, R. Buhrman, D. Muller*, A Robust Basis for Grain Identification in Polycrystalline Thin Film Devices Using Cepstrum Transforms of 4D-STEM Diffraction Pattern, Microscopy and Microanalysis, DOI:10.1017/S1431927620018759 (2020)
  11. M.-H. Nguyen*, G. J. Ribeill, M. Gustafsson, S. Shi, S. Aradhya, A. P. Wagner, L. M. Ranzani, L. Zhu, R. Bagdadi, B. Butters, E. Toomey, M. Colangelo, P. Truitt, A. J. Salim, D. McAllister, D. Yohannes, S. R. Cheng, R. Lazarus, O. Mukhanov, K. K. Berggren, R. A. Buhrman, G. E. Rowlands, T. A. Ohki, Cryogenic Memory Architecture Integrating Spin Hall Effect based Magnetic Memory and Superconductive Cryotron Devices, Scientific Reports 10, 248 (2020).
  12.  A.M. Park, Z. Chen, X. S. Zhang, L. Zhu, D. A. Muller, G. D. Fuchs*, Operando Control of Skyrmion Density in a Lorentz Transmission Electron Microscope with Current Pulses, Journal of Applied Physics 128, 233902 (2020)
  13. L. Zhu*, D. C. Ralph, R. A. Buhrman, Effective spin mixing conductance of the heavy-metal- ferromagnet interfaces, Physical Review Letters 123, 057203 (2019).
  14. L. Zhu*, L. Zhu, M. Sui, D. C. Ralph, R. A. Buhrman, Variation of the giant spin Hall conductivity of Pt with carrier lifetime, Science Advances 5, eaav8025 (2019).
  15. L. Zhu*, D. C. Ralph, R. A. Buhrman, Spin-orbit torques in heavy-metal-ferromagnet bilayers with varying strengths of interfacial spin-orbit coupling, Physical Review Letters 122, 077201 (2019).
  16. L. J. Zhu*, K. Sobotkiewich, X. Ma, X. Li, D. C. Ralph, R. A. Buhrman*, Strong and tunable anti-damping spin-orbit torque and Dzyaloshinskii-Moriya interaction generated by low-resistivity Pd1-xPtx alloys, Advanced Functional Materials 29, 1805822 (2019).
  17.  L. Zhu*, R. A. Buhrman, Maximizing spin torque efficiency of Pt/Ti multilayers: Tradeoff between intrinsic spin Hall conductivity and carrier lifetime, Physical Review Applied 12, 051002 (2019)(Letter).
  18. L. Zhu*, L. Zhu, S. Shi, M. Sui, D. C. Ralph, R. A. Buhrman, Enhancing spin-orbit torque by strong interfacial scattering from ultrathin insertion layers, Physical Review Applied 11, 061004 (2019)(Letter).
  19. L. Zhu*, D. C. Ralph, R. A. Buhrman, Enhancement of spin transparency by interfacial alloying, Physical Review B 99, 180404(R)(2019).
  20. L. Zhu*, J. Zhao, Influence of the chemical stability on the fabrication of MnGa based devices, Journal of Microelectronic Manufacturing, 2, 19020303 (2019).
  21. K. Meng, L. Zhu, Z. Jin, E. Liu, X. Zhao, I. A. Malik, Z. Fu, Y. W., J. Miao, X. Xu, J. Zhang, J. Zhao, Y. Jiang, Interface-driven unusual anomalous Hall effect in MnxGa/Pt bilayers, Physical Review B 100, 184410 (2019).
  22. L. Zhu*, D. C. Ralph, R. A. Buhrman, Highly efficient spin current generation by the spin Hall effect in Au1-xPtx, Physical Review Applied 10, 031001 (2018). (Letter, Editors’ suggestion).
  23. L. J. Zhu*, D. C. Ralph, R. A. Buhrman, Irrelevance of magnetic proximity effect to spin orbit torques in heavy-metal/ferromagnet bilayers, Physical Review B 98,134406 (2018).
  24. L. J. Zhu*, J. H. Zhao*, Anomalous resistivity upturn in epitaxial L21-Co2MnAl films, Scientific Reports 7, 42931 (2017).
  25.  L. J. Zhu*, J. H. Zhao*, Electrical Transport of perpendicularly magnetized L10-MnGa and MnAl films (invited), Spin 7, 1730001 (2017).
  26.  L. J. Zhu, S.H. Nie, P. Xiong, P. Schlottmann, J. H. Zhao*, Orbital two-channel Kondo effect in epitaxial ferromagnetic L10-MnAl films, Nature Communications 7, 10817 (2016).
  27.  L. J. Zhu*, J. H. Zhao*, G. Woltersdorf, Orbital two-channel Kondo effect in ferromagnetic L10-MnGa films, Scientific Reports 6, 34549 (2016).
  28.  L. J. Zhu*, P. Xiong, J. H. Zhao*, Anomalous Hall effect in ferromagnetic L10-MnAl with Orbital two-channel Kondo effect, Physical Review B 93, 195112 (2016).
  29. L. J. Zhu*, L. Brandt, J. H. Zhao, G. Woltersdorf, Composition-tuned magneto-optical Kerr effect in L10-MnxGa films with giant perpendicular anisotropy, Journal of Physics D: Applied Physics 49, 245001 (2016).
  30. L. J. Zhu*, L. Brandt, and J. H. Zhao, Engineering the polar magneto-optical Kerr effect in strongly strained L10–MnAl films, Journal of Physics D: Applied Physics 49, 415001 (2016).
  31. J. X. Xiao, J. Lu, W. Q. Liu, Y. W. Zhang, H. L. Wang, L. J. Zhu, H. X. Deng, D. H. Wei, Y. B. Xu, and J. H. Zhao*, Tailoring the interfacial exchange coupling of perpendicularly magnetized Co/L10-Mn1.5Ga bilayers, Journal of Physics D: Applied Physics 49, 245003 (2016).
  32.  J. X. Xiao, J. Lu, L. J. Zhu, and J. H. Zhao*, Perpendicular magnetic properties of ultrathin L10-Mn1.67Ga films grown by molecular-beam epitaxy, Acta Physica Sinica 65, 118105 (2016).
  33. 朱礼军*，赵建华*, 有趣的近藤效应, 物理 45, 458-460 (2016).
  34. 鲁军, 赵旭鹏, 毛思玮, 朱礼军, 赵建华, L10-MnGa或L10-MnAl基宽线性响应磁敏传感器及制备方法, 中国专利，申请号CN201610496714.5.
  35. Y.Y. Li, W.G. Luo, L. J. Zhu, J.H. Zhao, and K.Y. Wang*, Voltage manipulation of the magnetization reversal in Fe/n-GaAs/piezoelectric heterostructure, Journal of Magnetism and Magnetic Materials 375, 148 (2015).
  36.  L. J. Zhu, D. Pan, and J.H. Zhao*, Anomalous Hall effect in epitaxial L10-Mn1.5Ga films with variable chemical ordering, Physical Review B 89, 220406 (R) (2014).
  37. D. Pan, M.Q. Fu, X.Z. Yu, X.L. Wang, L. J. Zhu, S.H. Nie, S.L. Wang, Q. Chen, P. Xiong, S. von Molnár, J.H. Zhao*, Controlled Synthesis of Phase-Pure InAs Nanowires on Si (111) by Diminishing Diameter to 10 nm, Nano Letters, DOI: 10.1021/nl4040847 (2014).
  38.  L. J. Zhu, D. Pan, S. H. Nie, J. Lu, J. H. Zhao*, Tailoring magnetism of multifunctional MnxGa films with giant perpendicular anisotropy, Applied Physics Letters,102,132403 (2013).
  39. L. J. Zhu, J. H. Zhao*, Perpendicularly magnetized MnxGa films: a kind of promising material for future spintronic devices, magnetic recording and permanent magnets, Applied Physics A, 111, 379 (2013).
  40. L. J. Zhu, S.H. Nie, J.H. Zhao*, Recent progress in perpendicularly magnetized Mn-based binary alloy films (invited), Chinese Physics B 22,118505 (2013).
  41. S. H. Nie, L. J. Zhu, J. Lu, D. Pan, H. L. Wang, X. Z. Yu, J. X. Xiao, J. H. Zhao*, Perpendicularly magnetized τ-MnAl (001) thin films epitaxied on GaAs, Applied Physics Letters 102, 152405 (2013).
  42. S. H. Nie, L. J. Zhu, D. Pan, J. Lu, J. H. Zhao*, Structural characterization and magnetic properties of perpendicularly magnetized MnAl films grown by molecular-beam epitaxy, Acta Physica Sinica, 62, 178103 (2013).
  43. S. H. Nie, Y.Y. Chin, W.Q. Liu, J.C. Tung, J. Lu, H.J. Lin, G.Y. Guo*, K.K. Meng, L. Chen, L. J. Zhu, D. Pan, C.T. Chen, Y.B. Xu, W.S. Yan, J. H. Zhao*, Ferromagnetic interfacial interaction and the proximity effect in a Co2FeAl/(Ga,Mn)As bilayer, Physical Review Letters 111, 027203 (2013).
  44.  L. J. Zhu, S.H. Nie, K.K. Meng, D. Pan, J.H. Zhao*, H.Z. Zheng, Multifunctional L10-Mn1.5Ga Films with ultrahigh coercivity, giant perpendicular magnetocrystalline anisotropy and large magnetic energy product, Advanced Materials, 24, 4547 (2012).
  45. 赵建华, 朱礼军, 具有超大垂直矫顽力铁磁单晶薄膜的制备方法, 中国专利, 申请号 ZL.201210033517.1
  46. 杨爽，朱礼军，熊昌民，张仲秋，许成伟, 基于LabVIEW实时研究辐照效应对锰氧化物薄膜电阻的影响, 大学物理, 29, 55 (2010).

  47. 朱礼军, 魏昕，喻颖, 利用PASCO传感器研究管中声波的共振, 物理实验, 28, 40 (2008).