Enhanced thermoelectric power in ultrathin topological insulators with magnetic doping | Zendy

M. Tahir | Zendy; Aurélien Manchon | Zendy; Udo Schwingenschlögl | Zendy

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Enhanced thermoelectric power in ultrathin topological insulators with magnetic doping

Author(s) -

M. Tahir,

Aurélien Manchon,

Udo Schwingenschlögl

Publication year - 2014

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.4894283

Subject(s) - thermoelectric effect , condensed matter physics , materials science , topological insulator , thermoelectric materials , seebeck coefficient , magnetization , magnetic field , insulator (electricity) , doping , thermoelectric generator , thermal conductivity , optoelectronics , physics , thermodynamics , composite material , quantum mechanics

We derive analytical expressions for the magnetic moment and orbital magnetization as well as for the corresponding thermal conductivity and thermoelectric power of a topological insulator film. We demonstrate enhancement of the thermoelectric transport for decreasing film thickness and for application of an exchange field due to the tunable band gap. Combining hybridization and exchange field is particularly suitable for heat to electric energy conversion and thermoelectric cooling

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