In:
Chinese Physics Letters, IOP Publishing, Vol. 38, No. 8 ( 2021-09-01), p. 087501-
Abstract:
Compounds with the A15 structure have attracted extensive attention due to their superconductivity and nontrivial topological band structures. We have successfully grown Nb 3 Sb single crystals with the A15 structure and systematically measured the longitudinal resistivity, Hall resistivity and quantum oscillations in magnetization. Similar to other topological trivial/nontrivial semimetals, Nb 3 Sb exhibits large magnetoresistance (MR) at low temperatures (717%, 2 K and 9 T), unsaturating quadratic field dependence of MR and up-turn behavior in ρ xx ( T ) curves under magnetic field, which is considered to result from a perfect hole-electron compensation, as evidenced by the Hall resistivity measurements. The nonzero Berry phase obtained from the de-Hass van Alphen (dHvA) oscillations demonstrates that Nb 3 Sb is topologically nontrivial. These results indicate that Nb 3 Sb superconductor is also a semimetal with large MR and nontrivial Berry phase. This indicates that Nb 3 Sb may be another platform to search for the Majorana zero-energy mode.
Type of Medium:
Online Resource
ISSN:
0256-307X
,
1741-3540
DOI:
10.1088/0256-307X/38/8/087501
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2021
detail.hit.zdb_id:
2040565-0
SSG:
6,25