Electron-hole asymmetry, Dirac fermions, and quantum magnetoresistance in BaMnBi2
Journal Article
·
· Physical Review B
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Florida State Univ., Tallahassee, FL (United States)
Here, we report two-dimensional quantum transport and Dirac fermions in BaMnBi2 single crystals. BaMnBi2 is a layered bad metal with highly anisotropic conductivity and magnetic order below 290 K. Magnetotransport properties, nonzero Berry phase, small cyclotron mass, and the first-principles band structure calculations indicate the presence of Dirac fermions in Bi square nets. Quantum oscillations in the Hall channel suggest the presence of both electron and hole pockets, whereas Dirac and parabolic states coexist at the Fermi level.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0012704
- OSTI ID:
- 1255727
- Alternate ID(s):
- OSTI ID: 1244167
- Report Number(s):
- BNL-112245-2016-JA; PRBMDO; R&D Project: PM016; KC0201050
- Journal Information:
- Physical Review B, Vol. 93, Issue 11; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 55 works
Citation information provided by
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