Some peculiarities of thermopower at the Lifshitz topological transitions due to stacking change in bilayer and multilayer graphene | Zendy

V. N. Davydov | Zendy

Open Access

Some peculiarities of thermopower at the Lifshitz topological transitions due to stacking change in bilayer and multilayer graphene

Author(s) -

V. N. Davydov

Publication year - 2019

Publication title -

proceedings of the royal society a mathematical physical and engineering sciences

Language(s) - English

Resource type - Journals

eISSN - 1471-2946

pISSN - 1364-5021

DOI - 10.1098/rspa.2019.0028

Subject(s) - seebeck coefficient , stacking , graphene , condensed matter physics , gravitational singularity , bilayer graphene , gapless playback , bilayer , materials science , topology (electrical circuits) , thermoelectric effect , physics , nanotechnology , quantum mechanics , chemistry , mathematics , membrane , biochemistry , nuclear magnetic resonance , combinatorics

Singularities of thermopower (the Seebeck coefficient) are considered at the Lifshitz topological transitions (LTT) in bilayer graphene (BLG) and multilayer graphene (MLG) due to stacking change fromAB toAA . The dependence of singularities onμ ,γ 1 andΔ is investigated (μ is the chemical potential,γ 1 is the interlayer hopping parameter andΔ is the gap value) for the gapped graphene, as well as for the gapless one. The present paper results indicate that effects of the thermopower singularities are appreciable and can be used to observe the LTT, and to explore the degree of stacking change fromAB toAA in graphene. Therefore, the thermopower singularities at LTT due to stacking change fromAB toAA can be used as a powerful tool to control electronic properties of BLG- and MLG-based structures.

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