scholarly journals Proximity effect at the superconductor–topological insulator interface

2010 ◽  
Vol 81 (24) ◽  
Author(s):  
Tudor D. Stanescu ◽  
Jay D. Sau ◽  
Roman M. Lutchyn ◽  
S. Das Sarma
Keyword(s):  
Topological Insulator ◽  
Proximity Effect ◽  
Insulator Interface

scholarly journals Termination switching of antiferromagnetic proximity effect in topological insulator

2020 ◽  
Vol 6 (33) ◽  
pp. eaaz8463
Author(s):  
Chao-Yao Yang ◽  
Lei Pan ◽  
Alexander J. Grutter ◽  
Haiying Wang ◽  
Xiaoyu Che ◽  
...  
Keyword(s):  
Curie Temperature ◽  
Topological Insulator ◽  
Surface State ◽  
Proximity Effect ◽  
Surface States ◽  
Double Exchange ◽  
Exchange Interactions ◽  
Stacking Order ◽  
Bst Films ◽  
Magnetic Proximity Effect

This work reports the ferromagnetism of topological insulator, (Bi,Sb)2Te3 (BST), with a Curie temperature of approximately 120 K induced by magnetic proximity effect (MPE) of an antiferromagnetic CrSe. The MPE was shown to be highly dependent on the stacking order of the heterostructure, as well as the interface symmetry: Growing CrSe on top of BST results in induced ferromagnetism, while growing BST on CrSe yielded no evidence of an MPE. Cr-termination in the former case leads to double-exchange interactions between Cr3+ surface states and Cr2+ bulk states. This Cr3+-Cr2+ 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.

Magnetic proximity effect in the topological insulator BiSbTeSe2

2015 ◽  
Vol 9 (3) ◽  
pp. 175-179 ◽  
Author(s):  
Karan Banerjee ◽  
Jean Besbas ◽  
Peng Ren ◽  
Lan Wang ◽  
Hyunsoo Yang
Keyword(s):  
Topological Insulator ◽  
Proximity Effect ◽  
Magnetic Proximity Effect

scholarly journals Proximity-effect-induced superconducting phase in the topological insulator Bi2Se3

2012 ◽  
Vol 86 (13) ◽  
Author(s):  
Fan Yang ◽  
Fanming Qu ◽  
Jie Shen ◽  
Yue Ding ◽  
Jun Chen ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Proximity Effect ◽  
Superconducting Phase

scholarly journals Topological proximity effect in a topological insulator hybrid

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
T. Shoman ◽  
A. Takayama ◽  
T. Sato ◽  
S. Souma ◽  
T. Takahashi ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Proximity Effect ◽  
Topological Proximity

Charge-magnon conversion at the topological insulator/antiferromagnetic insulator interface

2020 ◽  
Vol 102 (11) ◽  
Author(s):  
L. Y. Liao ◽  
Z. Y. Zhou ◽  
Y. J. Zhou ◽  
W. X. Zhu ◽  
F. Pan ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Insulator Interface
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