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Tilted Spins in Chains of Molecular Switches on Pb(100)
ACS Nano ( IF 15.8 ) Pub Date : 2024-09-14 , DOI: 10.1021/acsnano.4c07477 Marten Treichel 1 , Jenny Möller 2 , Xiangzhi Meng 1 , Florian Gutzeit 2 , Rainer Herges 2 , Richard Berndt 1 , Alexander Weismann 1
ACS Nano ( IF 15.8 ) Pub Date : 2024-09-14 , DOI: 10.1021/acsnano.4c07477 Marten Treichel 1 , Jenny Möller 2 , Xiangzhi Meng 1 , Florian Gutzeit 2 , Rainer Herges 2 , Richard Berndt 1 , Alexander Weismann 1
Affiliation
A complex based on a Ni(II) porphyrin exhibiting spin crossover on Ag(111) is studied on Pb(100) by scanning tunneling microscopy at 0.3 K. Strong molecular interactions between the phenyl and pentafluorophenyl moieties lead to the formation of molecular chains and cause a faceting of the substrate surface. The chains are located along double and multiple substrate steps that deviate from high-symmetry directions. Tunneling spectroscopy reveals spin-flip excitations of an S = 1 system. Measurements in high magnetic fields are used to identify a tilt of the complex and its hard anisotropy axis with respect to the surface normal. Electron injection into the substrate near the molecular rows induces a transition to a state with larger inelastic cross section, leaving the spin state unchanged.
中文翻译:
Pb(100) 上分子开关链中的倾斜旋转
通过在 0.3 K 下扫描隧道显微镜,在 Pb(100) 上研究基于 Ni(II) 卟啉的复合物,该复合物在 Ag(111) 上表现出自旋交叉。苯基和五氟苯基部分之间的强分子相互作用导致分子链的形成并导致衬底表面的刻面。这些链位于偏离高对称方向的双和多基板台阶上。隧道光谱揭示了 S = 1 系统的自旋翻转激发。在高磁场中的测量用于识别复合物及其硬各向异性轴相对于表面法线的倾斜。将电子注入分子行附近的衬底中会诱导转变为具有较大非弹性横截面的状态,同时保持自旋状态不变。
更新日期:2024-09-14
中文翻译:
Pb(100) 上分子开关链中的倾斜旋转
通过在 0.3 K 下扫描隧道显微镜,在 Pb(100) 上研究基于 Ni(II) 卟啉的复合物,该复合物在 Ag(111) 上表现出自旋交叉。苯基和五氟苯基部分之间的强分子相互作用导致分子链的形成并导致衬底表面的刻面。这些链位于偏离高对称方向的双和多基板台阶上。隧道光谱揭示了 S = 1 系统的自旋翻转激发。在高磁场中的测量用于识别复合物及其硬各向异性轴相对于表面法线的倾斜。将电子注入分子行附近的衬底中会诱导转变为具有较大非弹性横截面的状态,同时保持自旋状态不变。