Experimental Evidence of t 2 g Electron-Gas Rashba Interaction Induced by Asymmetric Orbital Hybridization
Physical Review Letters(2022)
摘要
We report the control of Rashba spin-orbit interaction by tuning asymmetric hybridization between Ti-orbitals at the LaAlO3/SrTiO3 interface. This asymmetric orbital hybridization is modulated by introducing a LaFeO3 layer between LaAlO3 and SrTiO3, which alters the Ti-O lattice polarization and traps interfacial charge carriers, resulting in a large Rashba spin-orbit effect at the interface in the absence of an external bias. This observation is verified through high-resolution electron microscopy, magneto-transport and first-principles calculations. Our results open hitherto unexplored avenues of controlling Rashba interaction to design next-generation spin-orbitronics.
更多查看译文
关键词
asymmetric orbital hybridization,<mmlmath xmlnsmml=http//wwww3org/1998/math/mathml,electron-gas
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要