Giant Spin-dependent Thermoelectric Effect in Magnetic Tunnel Junctions

Overview

Journal Nat Commun

Specialty Biology

Date 2012 Mar 22

PMID 22434187

Citations 11

Authors

Weiwei Lin

Michel Hehn

Laurent Chaput

Beatrice Negulescu

Stephane Andrieu

Francois Montaigne

Stephane Mangin

Affiliations

Soon will be listed here.

Abstract

Thermoelectric effects in magnetic nanostructures and the so-called spin caloritronics are attracting much interest. Indeed it provides a new way to control and manipulate spin currents, which are key elements of spin-based electronics. Here we report on a giant magnetothermoelectric effect in a magnetic tunnel junction. The thermovoltage in this geometry can reach 1 mV. Moreover a magnetothermovoltage effect could be measured with ratio similar to the tunnel magnetoresistance ratio. The Seebeck coefficient can then be tuned by changing the relative magnetization orientation of the two magnetic layers in the tunnel junction. Therefore, our experiments extend the range of spintronic devices application to thermoelectricity and provide a crucial piece of information for understanding the physics of thermal spin transport.

Citing Articles

Electromagnetic Radiation Effects on MgO-Based Magnetic Tunnel Junctions: A Review.

Seifu D, Peng Q, Sze K, Hou J, Gao F, Lan Y Molecules. 2023; 28(10).

PMID: 37241892 PMC: 10223111. DOI: 10.3390/molecules28104151.

Magnetic moment impact on spin-dependent Seebeck coefficient of ferromagnetic thin films.

Portavoce A, Assaf E, Bertoglio M, Narducci D, Bertaina S Sci Rep. 2023; 13(1):172.

PMID: 36599898 DOI: 10.1038/s41598-022-26993-3.

The spin-dependent properties of silicon carbide/graphene nanoribbons junctions with vacancy defects.

Khanlar G, Izadi Vishkayi S, Soleimani H Sci Rep. 2021; 11(1):23879.

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All-optical detection of interfacial spin transparency from spin pumping in β-Ta/CoFeB thin films.

Panda S, Mondal S, Sinha J, Choudhury S, Barman A Sci Adv. 2019; 5(4):eaav7200.

PMID: 31032416 PMC: 6486232. DOI: 10.1126/sciadv.aav7200.

Multiple thermal spin transport performances of graphene nanoribbon heterojuction co-doped with Nitrogen and Boron.

Huang H, Gao G, Fu H, Zheng A, Zou F, Ding G Sci Rep. 2017; 7(1):3955.

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