Probing the Fermi surface of three-dimensional Dirac semimetalCd3As2through the de Haas–van Alphen technique
Open accessAbstract
We have observed Shubnikov--de Haas and de Haas--van Alphen effects in the single crystals of the three-dimensional Dirac semimetal ${\mathrm{Cd}}_{3}{\mathrm{As}}_{2}$ up to 50 K, traceable at fields as low as 2 and 1 T, respectively. The values of the Fermi wave vector, the Fermi velocity, and the effective cyclotron mass of the charge carrier, calculated from both techniques, are close to each other and match well with earlier reports. However, the de Haas--van Alphen effect clearly reflects the existence of two different Fermi surface cross sections along certain directions and a nontrivial Berry's phase, which is the signature of a three-dimensional Dirac fermion in ${\mathrm{Cd}}_{3}{\mathrm{As}}_{2}$.
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Quantum relaxation time and transport relaxation time are essentially different even though both arise from scattering by static impurities and defects.
“While both arise from the scattering by static impurities and defects, these two quantities are essentially different (217, 218):”
From Transport of Topological Semimetals (2019) · cites this paper as [218]
The Fermi-surface discussion (p. 4) reports a Dingle temperature from oscillation damping, but does not compare quantum and transport relaxation times. Searches for relaxation time, scattering, and the claimed distinction found no passage in our copy that addresses it. (LLM, conf=0.74)
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<i>Colloquium</i> : Topological band theory
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- Authors
- Pariari, A., Dutta, P., & Mandal, P.
- Affiliations
- Saha Institute of Nuclear Physics (IN)
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 2015-04-23
- Volume
- 91
- Issue
- 15
- ISSN
- 1098-0121 (ISSN-L)
- 1550-235X
- OpenAlex
- W1652746594
- Cited by
- 45
- References
- 5
- Citations by year
- 2026: 1 · 2025: 5 · 2023: 1 · 2022: 2 · 2021: 4 · 2020: 4 · 2019: 6 · 2018: 9 · 2017: 5 · 2016: 7 · 2015: 1
- FWCI
- 3.73
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Physical Review B (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- arXiv (Cornell University)
- Funders
- Council for Scientific and Industrial Research
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Topological Materials and Phenomena
- Physical Sciences › Materials Science › Materials Chemistry › 2D Materials and Applications
- Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Advanced Condensed Matter Physics
- Keywords
- Cd3As2, three-dimensional Dirac semimetal, Fermi surface, de Haas-van Alphen effect, Shubnikov-de Haas effect, Berry phase, Dirac fermions, Fermi velocity, Fermi wave vector, topological semimetals
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