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Title: Helical Spin Order from Topological Dirac and Weyl Semimetals

In this paper, we study dynamical mass generation and the resultant helical spin orders in topological Dirac and Weyl semimetals, including the edge states of quantum spin Hall insulators, the surface states of weak topological insulators, and the bulk materials of Weyl semimetals. In particular, the helical spin textures of Weyl semimetals manifest the spin-momentum locking of Weyl fermions in a visible manner. Finally, the spin-wave fluctuations of the helical order carry electric charge density; therefore, the spin textures can be electrically controlled in a simple and predictable manner.
Authors:
 [1] ;  [2] ;  [3]
  1. Tsinghua Univ., Beijing (China). Inst. for Advanced Study
  2. Stanford Univ., CA (United States). Dept. of Physics; Tsinghua Univ., Beijing (China). Inst. for Advanced Study
  3. Tsinghua Univ., Beijing (China). Inst. for Advanced Study; Collaborative Innovation Center of Quantum Matter, Beijing (China)
Publication Date:
OSTI Identifier:
1326995
Report Number(s):
SLAC-PUB--16718
Journal ID: ISSN 0031-9007
Grant/Contract Number:
AC02-76SF00515; 11304175; DMR-1305677
Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 115; Journal Issue: 7; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States); Tsinghua Univ., Beijing (China)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF) (United States); National Natural Science Foundation of China (NSFC)
Contributing Orgs:
Collaborative Innovation Center of Quantum Matter, Beijing (China)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 36 MATERIALS SCIENCE