Termination switching of antiferromagnetic proximity effect in topological insulator
Chao‐Yao Yang, Lei Pan, Alexander J. Grutter, Haiying Wang, Xiaoyu Che, Qinglin He, Yingying Wu, Dustin A. Gilbert, Padraic Shafer, Elke Arenholz, Hao Wu, Gen Yin, Peng Deng, J. A. Borchers, William Ratcliff, Kang L. Wang
Abstract
exchange stabilizes the ferromagnetic order localized at the interface and magnetically polarizes the BST Sb band. In contrast, Se-termination at the CrSe/BST interface yields no detectable MPE. These results directly confirm the MPE in BST films and provide critical insights into the sensitivity of the surface state.
Topics & Concepts
AntiferromagnetismTopological insulatorCondensed matter physicsKey (lock)Insulator (electricity)Topology (electrical circuits)Materials sciencePhysicsComputer scienceOptoelectronicsComputer securityElectrical engineeringEngineeringTopological Materials and PhenomenaAdvanced Condensed Matter PhysicsQuantum and electron transport phenomena