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Anisotropic Transport and Quantum Oscillations in the Quasi-One-Dimensional TaNiTe5: Evidence for the Nontrivial Band Topology
- Source :
- The Journal of Physical Chemistry Letters. 11:7782-7789
- Publication Year :
- 2020
- Publisher :
- American Chemical Society (ACS), 2020.
-
Abstract
- The past decade has witnessed the burgeoning discovery of a variety of topological states of matter with distinct nontrivial band topologies. Thus far, most materials that have been studied possess two-dimensional or three-dimensional electronic structures, with only a few exceptions that host quasi-one-dimensional (quasi-1D) topological electronic properties. Here we present clear-cut evidence for Dirac Fermions in the quasi-1D telluride TaNiTe5. We show that its transport behaviors are highly anisotropic, and we observe nontrivial Berry phases via quantum oscillation measurements. The nontrivial band topology is further corroborated by first-principles calculations. Our results may help to guide the future quest for topological states in this new family of quasi-1D ternary chalcogenides.
- Subjects :
- Physics
Quantum oscillations
02 engineering and technology
021001 nanoscience & nanotechnology
Topology
Network topology
01 natural sciences
symbols.namesake
Dirac fermion
0103 physical sciences
symbols
State of matter
General Materials Science
Physical and Theoretical Chemistry
Variety (universal algebra)
010306 general physics
0210 nano-technology
Anisotropy
Ternary operation
Topology (chemistry)
Subjects
Details
- ISSN :
- 19487185
- Volume :
- 11
- Database :
- OpenAIRE
- Journal :
- The Journal of Physical Chemistry Letters
- Accession number :
- edsair.doi...........f9d1872b6831178bcd15b640ca44c4ee