Broken symmetry and tilting effects are ubiquitous in Weyl semimetals (WSMs). Therefore, it is crucial to understand their impacts on the materials’ electronic and optical properties. Here, using a realistic four-band model for WSMs, which incorporates both the symmetry breaking and tilting effects, we study its Landau quantization and the associated magneto-absorption spectrum. We show that the Landau bands in tilted WSMs can be obtained by considering a non-tilt Hamiltonian through Lorentz boost. However, broken symmetry effects can generate an additional term in the Hamiltonian, which equivalently lead to band reconstruction. Our work provides a more realistic view of the magnetic field response of WSMs that shall be taken into account in relevant future device applications.
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14 March 2021
Research Article|
March 12 2021
Landau quantization in tilted Weyl semimetals with broken symmetry
Special Collection:
Topological Materials and Devices
L. Zhang;
L. Zhang
1
School of Physics, Georgia Institute of Technology
, Atlanta, Georgia 30332, USA
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Y. Jiang
;
Y. Jiang
a)
2
National High Magnetic Field Laboratory
, Tallahassee, Florida 32310, USA
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D. Smirnov
;
D. Smirnov
2
National High Magnetic Field Laboratory
, Tallahassee, Florida 32310, USA
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Note: This paper is part of the Special Topic on Topological Materials and Devices.
J. Appl. Phys. 129, 105107 (2021)
Article history
Received:
December 29 2020
Accepted:
February 23 2021
Citation
L. Zhang, Y. Jiang, D. Smirnov, Z. Jiang; Landau quantization in tilted Weyl semimetals with broken symmetry. J. Appl. Phys. 14 March 2021; 129 (10): 105107. https://doi.org/10.1063/5.0042307
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