Magneto-Seebeck effect in magnetic tunnel junctions with perpendicular anisotropy | Zendy

Keyu Ning | Zendy; Houfang Liu | Zendy; ZhenYi Ju | Zendy; Chi Fang | Zendy; Caihua Wan | Zendy; Jinglei Cheng | Zendy; Xiao Liu | Zendy; Linsen Li | Zendy; Jiafeng Feng | Zendy; Hongxiang Wei | Zendy; Xingguo Han | Zendy; Yi Yang | Zendy; TianLing Ren | Zendy

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Magneto-Seebeck effect in magnetic tunnel junctions with perpendicular anisotropy

Author(s) -

Keyu Ning,

Houfang Liu,

ZhenYi Ju,

Chi Fang,

Caihua Wan,

Jinglei Cheng,

Xiao Liu,

Linsen Li,

Jiafeng Feng,

Hongxiang Wei,

Xingguo Han,

Yi Yang,

TianLing Ren

Publication year - 2017

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4974972

Subject(s) - condensed matter physics , seebeck coefficient , thermoelectric effect , tunnel magnetoresistance , materials science , magneto , quantum tunnelling , antiparallel (mathematics) , anisotropy , magnetoresistance , ferromagnetism , magnetic field , voltage , physics , quantum mechanics , thermodynamics

As one invigorated filed of spin caloritronics combining with spin, charge and heat current, the magneto-Seebeck effect has been experimentally and theoretically studied in spin tunneling thin films and nanostructures. Here we analyze the tunnel magneto-Seebeck effect in magnetic tunnel junctions with perpendicular anisotropy (p-MTJs) under various measurement temperatures. The large tunnel magneto-Seebeck (TMS) ratio up to −838.8% for p-MTJs at 200 K is achieved, with Seebeck coefficient S in parallel and antiparallel states of 6.7 mV/K and 62.9 mV/K, respectively. The temperature dependence of the tunnel magneto-Seebeck can be attributed to the contributing transmission function and electron states at the interface between CoFeB electrode and MgO barrier

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