Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 11, Issue 18, Pages 7782-7789Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.0c02382
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Funding
- National Natural Science Foundation of China [11974061, U1732162, 11521404, U1632272, U1832147, U1932217]
- National Key Research and Development Program of China [2016YFA0401704]
- Zhejiang Provincial Natural Science Foundation of China [LY19A040002]
- NUPTSF [NY219087, NY220038]
- Ministry of Science and Technology in Taiwan [MOST-108-2112-M-001-049-MY2]
- Academia Sinica [ASiMATE-109-13]
- Michigan State University
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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.
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