Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session G70: Poster Session I (2:00pm-5:00pm)
2:00 PM,
Tuesday, March 5, 2019
BCEC
Room: Exhibit Hall
Abstract: G70.00157 : Thermally induced spin polarization in 2D systems with Rashba spin-orbit interaction*
Presenter:
Anna Dyrdal
(Institut für Physik, Martin-Luther Universität Halle-Wittenberg, D-06099 Halle, Germany)
Authors:
Anna Dyrdal
(Institut für Physik, Martin-Luther Universität Halle-Wittenberg, D-06099 Halle, Germany)
Jozef Barnas
(Faculty of Physics, Adam Mickiewicz University in Poznan, ul. Umultowska 85, 61-614 Poznan, Poland)
Vitalii Dugaev
(Department of Physics and Medical Engineering, Rzeszow University of Technology, Al. Powstancow Warszawy 6, 35-959 Rzeszow, Poland)
Jamal Berakdar
(Institut für Physik, Martin-Luther Universität Halle-Wittenberg, D-06099 Halle, Germany)
Moreover, we show that the electrically induced and the thermally induced spin polarizations obey the Mott relation in a nonmagnetic 2DEG as well as in the magnetic system but in the latter case only for the spin polarization normal to the electric field and to the thermal gradient. The components along the driving forces in a magnetic system do not obey this relation. This is mainly due to the fact that these components are determined by the Berry curvature of the electronic bands in the presence of both spin-orbit and exchange interactions.
[PRB 98, 075307 (2018), PRB 95, 245302 (2017)]
*A. Dyrdal and J. Berakdar acknowledge the support of German Research Foundation (DFG) through SFB 726 and SFB TRR 227
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