Topological insulators are emergent states of quantum matter that are gapped in the bulk with timereversal symmetry-pteserved gapless edge/surface states, adiabatically distinct from conventional mat erials. By proxim...Topological insulators are emergent states of quantum matter that are gapped in the bulk with timereversal symmetry-pteserved gapless edge/surface states, adiabatically distinct from conventional mat erials. By proximity to various magnets and superconductors, to pological insula tors show novel physics at the interfaces, which give rise to two new areas named topological spintronics and topological quantum compu tat ion. Effects in the former such as the spin to rques, spin-charge conversion, to pological antiferromagnetic spintronics, and skyrmions realized in topological systems will be addressed. In the latter, a superconducting pairing gap leads to a state that supports Majorana fermions states, which may provide a new path for realizing to pological quantum comp ut at ion. Various signa tu res of Majorana zero modes/edge mode in topological superconductors will be discussed. The review ends by outlooks and potential applications of topological insulators. Topological superconductors that are fabricated using topological insulators with superconductors have a full pairing gap in the bulk and gapless surface states consisting of Majorana fermions. The theory of topological superconductors is reviewed, in close analogy to the theory of topological insulators.展开更多
基金the supports from the National Natural Science Foundation of China (Grant No.11874070)the National Key R&D Program of China (Grant No.2018YFA0305601)+1 种基金the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No.XDB28000000)National Thousand-Young-Talents Program in China (Grant No.8206100161).
文摘Topological insulators are emergent states of quantum matter that are gapped in the bulk with timereversal symmetry-pteserved gapless edge/surface states, adiabatically distinct from conventional mat erials. By proximity to various magnets and superconductors, to pological insula tors show novel physics at the interfaces, which give rise to two new areas named topological spintronics and topological quantum compu tat ion. Effects in the former such as the spin to rques, spin-charge conversion, to pological antiferromagnetic spintronics, and skyrmions realized in topological systems will be addressed. In the latter, a superconducting pairing gap leads to a state that supports Majorana fermions states, which may provide a new path for realizing to pological quantum comp ut at ion. Various signa tu res of Majorana zero modes/edge mode in topological superconductors will be discussed. The review ends by outlooks and potential applications of topological insulators. Topological superconductors that are fabricated using topological insulators with superconductors have a full pairing gap in the bulk and gapless surface states consisting of Majorana fermions. The theory of topological superconductors is reviewed, in close analogy to the theory of topological insulators.
