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De Haas–van Alphen study on three-dimensional topological semimetal pyrite PtBi2
- Source :
- Science Bulletin. 64:1496-1501
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
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 1.5 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.
- Subjects :
- Physics
Multidisciplinary
Field (physics)
Oscillation
Dirac (software)
Quantum oscillations
Fermi surface
010502 geochemistry & geophysics
Topology
De Haas–van Alphen effect
01 natural sciences
Semimetal
symbols.namesake
Dirac fermion
Condensed Matter::Superconductivity
symbols
Condensed Matter::Strongly Correlated Electrons
0105 earth and related environmental sciences
Subjects
Details
- ISSN :
- 20959273
- Volume :
- 64
- Database :
- OpenAIRE
- Journal :
- Science Bulletin
- Accession number :
- edsair.doi...........06c9ed417d8af53d0a092048706478ea
- Full Text :
- https://doi.org/10.1016/j.scib.2019.08.005