Journalartikel

Jahr der Veröffentlichung: 2018

Zeitschrift: AIP Advances

Bandnummer: 8

Heftnummer: 11

ISSN: 2158-3226

Open Access Status: Gold

DOI Link: https://doi.org/10.1063/1.5042014

Verlag: American Institute of Physics

Abstract: 
We find an unusual angular dependence of the tunneling magneto-Seebeck effect (TMS). The conductance shows normally a cosine-dependence with the angle between the magnetizations of the two ferromagnetic leads. In contrast, the angular dependence of the TMS depends strongly on the tunneling magneto resistance (TMR) ratio. For small TMR ratios we obtain also a cosine-dependence whereas for very large TMR ratios the angular dependence approaches a step-like function. The origin is that the cosine-dependent transmission function enters in the denominator of the definition of the Seebeck coefficient. Although the TMR and TMS are disconnected with respect to their magnitude the size of the TMR effect can be deducted from the angular dependence of the TMS effect. (C) 2018 Author(s).

Harvard-Zitierstil: Heiliger, C., Czerner, M., Liebing, N., Serrano-Guisan, S., Rott, K., Reiss, G., et al. (2018) Unusual angular dependence of tunneling magneto-Seebeck effect, AIP Advances, 8(11), Article 115114. https://doi.org/10.1063/1.5042014

APA-Zitierstil: Heiliger, C., Czerner, M., Liebing, N., Serrano-Guisan, S., Rott, K., Reiss, G., & Schumacher, H. (2018). Unusual angular dependence of tunneling magneto-Seebeck effect. AIP Advances. 8(11), Article 115114. https://doi.org/10.1063/1.5042014