Td-MoTe2: A possible topological superconductor
Abstract
We measured the magnetoresistivity properties of Td-MoTe2 single crystal under the magnetic field up to 33 T. By analyzing the Shubnikov-de Haas oscillations of the longitudinal resistance Δρxx, a linear dependence of the Landau index n on 1/B is obtained. The intercept of the Landau index plot is 0.47, which is between 3/8 and 1/2. This clearly reveals a nontrivial π Berry's phase, which is a distinguished feature of the surface state in Td-MoTe2 single crystal. Accompanied by the superconductivity observed at TC = 0.1 K, Td-MoTe2 may be a promising candidate of the topological superconductor and opens a door to study the relationship between the superconductivity and topological physics.
- Publication:
-
Applied Physics Letters
- Pub Date:
- September 2016
- DOI:
- 10.1063/1.4962466
- arXiv:
- arXiv:1602.01549
- Bibcode:
- 2016ApPhL.109j2601L
- Keywords:
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- Condensed Matter - Strongly Correlated Electrons;
- Condensed Matter - Materials Science;
- Condensed Matter - Superconductivity
- E-Print:
- doi:10.1063/1.4962466