2012
DOI: 10.1038/ncomms1748
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Giant spin-dependent thermoelectric effect in magnetic tunnel junctions

Abstract: Thermoelectric effects in magnetic nanostructures and the so-called spin caloritronics are attracting much interests. 1−11,27,28 Indeed it provides a new way to control and manipulate spin currents which are key elements of spin-based electronics.12,13 Here we report on the giant magnetothermoelectric effect in a magnetic tunnel junction. The thermovoltage in this geometry can reach 1 mV. Moreover a magneto-thermovoltage effect could be measured with ratio similar to the tunnel magnetoresistance r… Show more

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Cited by 121 publications
(133 citation statements)
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References 35 publications
(46 reference statements)
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“…Since the system is symmetric, the effective spin polarization [Eq. (17)] is the same in both electrodes, so P eff gl = P eff gr ≡ P . In addition, for the set of parameters discussed throughout this section, the relation P 2 1 is satisfied, hence, Eq.…”
Section: Resultsmentioning
confidence: 99%
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“…Since the system is symmetric, the effective spin polarization [Eq. (17)] is the same in both electrodes, so P eff gl = P eff gr ≡ P . In addition, for the set of parameters discussed throughout this section, the relation P 2 1 is satisfied, hence, Eq.…”
Section: Resultsmentioning
confidence: 99%
“…(16) [Eq. (17)] k σ 0 and m * l with κ σ 0 and m * r , respectively. In order now to derive analytical expressions for the thermopower and the TMT, we benefit from Mott's relation [33,34], which states that…”
Section: Analytical Expression For the Tmtmentioning
confidence: 99%
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“…In the last few years, part of the scientific and technological interest in nanowires has been moved to energy harvesting such as photovoltaic [4][5][6][7][8][9][10][11][12][13], thermoelectric devices [14][15][16][17] and batteries [18][19][20][21][22]. Most of these devices are linked to the external world via electrical contacts.…”
Section: Introductionmentioning
confidence: 99%