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Updated: Feb 28, 2026

Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials
Published on: January 21, 2016
Phonon-drag magnetoquantum oscillations in graphene
S S Kubakaddi1, Tutul Biswas2, Tarun Kanti Ghosh3
1Department of Physics, K. L. E. Technological University, Hubballi-580 031, Karnataka, India.
None:
A theory of low-temperature phonon-drag magnetothermopower [Formula: see text] is presented in graphene in a quantizing magnetic field. [Formula: see text] is found to exhibit quantum oscillations as a function of magnetic field B and electron concentration n e . The amplitude of the oscillations is found to increase (decrease) with increasing B (n e ). The behavior of [Formula: see text] is also investigated as a function of temperature. A large value of [Formula: see text] (∼few hundreds of μV K-1) is predicted. Numerical values of [Formula: see text] are compared with the measured magnetothermopower S xx and the diffusion component [Formula: see text] from the modified Girvin-Jonson theory.
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