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Experimental Observation and Spin Texture of Dirac Node Arcs in Tetradymite Topological Metals.
- Source :
-
Physical Review Letters . 5/14/2021, Vol. 126 Issue 19, p1-1. 1p. - Publication Year :
- 2021
-
Abstract
- We report the observation of a nontrivial spin texture in Dirac node arcs, i.e., novel topological objects formed when Dirac cones of massless particles extend along an open one-dimensional line in momentum space. We find that such states are present in all the compounds of the tetradymite M2Te2X family (M=Ti, Zr, or Hf and X=P or As) regardless of the weak or strong character of the topological invariant. The Dirac node arcs in tetradymites are thus the simplest possible textbook example of a type-I Dirac system with a single spin-polarized node arc. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SEMIMETALS
*TOPOLOGICAL property
*MOMENTUM space
*TEXTURES
*METALS
*CONES
Subjects
Details
- Language :
- English
- ISSN :
- 00319007
- Volume :
- 126
- Issue :
- 19
- Database :
- Academic Search Index
- Journal :
- Physical Review Letters
- Publication Type :
- Academic Journal
- Accession number :
- 150379404
- Full Text :
- https://doi.org/10.1103/PhysRevLett.126.196407