De Haas-van Alphen study on three-dimensional topological semimetal pyrite PtBi2.
Sci Bull (Beijing)
; 64(20): 1496-1501, 2019 Oct 30.
Article
em En
| MEDLINE
| ID: mdl-36659557
ABSTRACT
We present the systematic de Haas-van Alphen (dHvA) quantum oscillations studies on the recently discovered topological Dirac semimetal pyrite PtBi2 single crystals. Remarkable dHvA oscillations are emerged at a low field about 1.5â¯T. From the analyses of the dHvA oscillations, we extract the high quantum mobilities, light effective masses and phase shift factors for the Dirac fermions in pyrite PtBi2. From the angular dependence of the dHvA oscillations, we map out the topology of the Fermi surface. Furthermore, we identify two additional oscillation frequencies that are not probed by the SdH oscillations, which provides us with opportunities to further understand its Fermi surface topology.
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Bases de dados:
MEDLINE
Tipo de estudo:
Prognostic_studies
Idioma:
En
Revista:
Sci Bull (Beijing)
Ano de publicação:
2019
Tipo de documento:
Article