TY - GEN
T1 - Topological spintronics
AU - Samarth, Nitin
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/8/22
Y1 - 2016/8/22
N2 - The emerging field of 'topological spintronics' is rooted in the recent realization that narrow band gap semiconductors such as the Bi- and Sb-chalcogenides support two dimensional (2D) helical Dirac fermion surface states characterized by a spin-texture in momentum space [1,2]. Spin- and angle-resolved photoemission spectroscopy [3] has revealed the linear dispersion and the 'spin-momentum locking' of the 2D surface states in these three dimensional (3D) 'topological insulators.' Electrical transport measurements have also shown evidence for spin-momentum locking [4-7], although in devices that contain both bulk and surface conduction. The spin-momentum locking of 2D helical Dirac states lends itself naturally to spintronic device applications and is in particular expected to result in efficient spin-to-charge conversion. In this talk, we present an overview of recent experiments that explore the emergence of 'topological spintronics,' a potential device technology that exploits the helical Dirac spin texture for manipulating the magnetization of a vicinal ferromagnet.
AB - The emerging field of 'topological spintronics' is rooted in the recent realization that narrow band gap semiconductors such as the Bi- and Sb-chalcogenides support two dimensional (2D) helical Dirac fermion surface states characterized by a spin-texture in momentum space [1,2]. Spin- and angle-resolved photoemission spectroscopy [3] has revealed the linear dispersion and the 'spin-momentum locking' of the 2D surface states in these three dimensional (3D) 'topological insulators.' Electrical transport measurements have also shown evidence for spin-momentum locking [4-7], although in devices that contain both bulk and surface conduction. The spin-momentum locking of 2D helical Dirac states lends itself naturally to spintronic device applications and is in particular expected to result in efficient spin-to-charge conversion. In this talk, we present an overview of recent experiments that explore the emergence of 'topological spintronics,' a potential device technology that exploits the helical Dirac spin texture for manipulating the magnetization of a vicinal ferromagnet.
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U2 - 10.1109/DRC.2016.7548496
DO - 10.1109/DRC.2016.7548496
M3 - Conference contribution
AN - SCOPUS:84987733267
T3 - Device Research Conference - Conference Digest, DRC
BT - 74th Annual Device Research Conference, DRC 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 74th Annual Device Research Conference, DRC 2016
Y2 - 19 June 2016 through 22 June 2016
ER -