Magneto-Seebeck effect in an ITO/PEDOT:PSS/Au thin-film device | Zendy

Hongfeng Wang | Zendy; Qing Liu | Zendy; Jeremy T. Tisdale | Zendy; Ling Xu | Zendy; Yuchun Liu | Zendy; Bin Hu | Zendy

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Magneto-Seebeck effect in an ITO/PEDOT:PSS/Au thin-film device

Author(s) -

Hongfeng Wang,

Qing Liu,

Jeremy T. Tisdale,

Ling Xu,

Yuchun Liu,

Bin Hu

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4947122

Subject(s) - condensed matter physics , lorentz force , thermoelectric effect , magnetoresistance , seebeck coefficient , pedot:pss , materials science , magnetic field , thin film , perpendicular , layer (electronics) , nanotechnology , physics , geometry , mathematics , quantum mechanics , thermodynamics

This article reports giant magnetic field effects on the Seebeck coefficient by exerting a Lorentz force on charge diffusion based on vertical multi-layer ITO/PEDOT:PSS/Au thin-film devices. The Lorentz force, induced by an external magnetic field, changes the charge transport and consequently generates angular dependent magnetoresistance. The proposed mechanism of the magneto-Seebeck effect is proved by measuring the magnetoresistance at a parallel, 45o and perpendicular angle to the temperature gradient. The gradual change of the magnetoresistance from a parallel to perpendicular angle indicates that the Lorentz force is a key driving force to develop the magneto-Seebeck effect. Therefore, our experimental results demonstrate a magnetic approach to control the thermoelectric properties in organic materials

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