Noise-based approximation to thermal spin-injection in Fe/GaAs
We analyze the prospects for thermal spin-injection from iron into gallium arsenide via the application of electrical noise. By estimating the applied effective temperature-equivalent gradients, we characterize the magnitude of any electrical part of the thermal spin-injection efficiency or the spin...
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Veröffentlicht in: | Applied physics letters 2017-10, Vol.111 (14) |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | We analyze the prospects for thermal spin-injection from iron into gallium arsenide via the application of electrical noise. By estimating the applied effective temperature-equivalent gradients, we characterize the magnitude of any electrical part of the thermal spin-injection efficiency or the spin-dependent Seebeck effect. The magnitude of the non-local spin signal associated with this effect suggests that temperature differences on the order of ∼100 K would be needed for true thermal spin-injection experiments. The large size of the effective temperature gradients induced by the noise-based method means that even very small thermo-electric effects can be quantified. |
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ISSN: | 0003-6951 1077-3118 |
DOI: | 10.1063/1.4985537 |