Angular Anisotropy of Thermoelectric Properties of a Periodic Composite Medium in the Presence of a Magnetic Field

Yakov M. Strelniker, David J. Bergman

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4 Scopus citations

Abstract

When the magnetic field is strong enough, the effective galvano-magnetic thermoelectric properties of periodical metamaterial exhibit very strong variations with the direction of the applied magnetic field with respect to the symmetry axes of the metamaterial nanostructure. This is qualitatively similar to other effects recently predicted by us: magneto-induced angular magnetoresistance anisotropy (which was verified experimentally) and magneto-induced magneto-optical anisotropy. The angular magneto-induced anisotropy of the thermoelectric moduli depends upon the inclusion radii R. For sufficiently large values of dimensionless magnetic field, additional maxima or minima in (n01)-like directions appear with decreasing inclusion radii. The current results can be useful for studying the possibility of increasing the thermoelectric figure of merit by application of a strong magnetic field.

Original languageEnglish
Pages (from-to)4507-4514
Number of pages8
JournalJournal of Electronic Materials
Volume48
Issue number7
DOIs
StatePublished - 15 Jul 2019

Bibliographical note

Publisher Copyright:
© 2019, The Minerals, Metals & Materials Society.

Funding

The research of YMS was supported, in part, by a grant from the the KAMEA program of the Ministry of Absorption of the State of Israel. This work was supported also by the Cy-Tera HPC Project (pro16b108s1), which is co-funded by the European Regional Development Fund and the Republic of Cyprus through the Research Promotion Foundation.

FundersFunder number
Research Promotion Foundation
Ministry of Health, State of Israelpro16b108s1
European Regional Development Fund

    Keywords

    • Thermoelectricity
    • figure of merit
    • magneto-induced anisotropy of thermoelectric coefficients

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