Noise-based approximation to thermal spin-injection in Fe/GaAs

Autor: Wagner, T, Haigh, JA, Olejník, K, Irvine, AC, Novák, V, Wunderlich, J
Přispěvatelé: Irvine, Andrew [0000-0002-2097-3614], Apollo - University of Cambridge Repository
Rok vydání: 2017
Předmět:
Popis: © 2017 Author(s). 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.
Databáze: OpenAIRE