Large and Robust Charge-to-Spin Conversion in Sputtered Weyl Semimetal WTex with Structural Disorder

13 Jan 2020 Li Xiang Li Peng Hou Vincent D. -H. DC Mahendra Nien Chih-Hung Xue Fen Yi Di Bi Chong Lee Chien-Min Lin Shy-Jay Tsai Wilman Suzuki Yuri Wang Shan X.

Topological insulators have recently shown great promise for ultralow-power spin-orbit torque (SOT) devices thanks to their large charge-to-spin conversion efficiency originating from the spin-momentum-locked surface states. Weyl semimetals, on the other hand, may be more desirable due to their spin-polarized surface as well as bulk states, robustness against magnetic and structural disorder, and higher electrical conductivity for integration in metallic magnetic tunnel junctions... (read more)

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  • MESOSCALE AND NANOSCALE PHYSICS
  • MATERIALS SCIENCE