In:
Solid State Phenomena, Trans Tech Publications, Ltd., Vol. 215 ( 2014-4), p. 368-371
Kurzfassung:
We present the results of investigations of the spin-polarized current and spin dynamics in the hybrid structures ferrimagnetic insulator/ferromagnetic metal subjected to microwave radiation. We studied the La 0.7 Sr 0.3 MnO 3 /Y 3 Fe 5 O 12 bilayer films on the Gd 3 Ga 5 O 12 substrate. It was experimentally established that under the action of spin pumping the resistance of the La 0.7 Sr 0.3 MnO 3 film changes. The value of ΔR is maximum in the sample with a La 0.7 Sr 0.3 MnO 3 layer thickness of 10 nm and sharply drops as the manganite film thickness is increased. The resistance decreases in the paramagnetic region and grows in the ferromagnetic region at temperatures below the metal-insulator transition point. The variation in the resistance of the manganite film can be attributed to the correlation of the spin dynamics and transport properties of conduction electrons in the structure.
Materialart:
Online-Ressource
ISSN:
1662-9779
DOI:
10.4028/www.scientific.net/SSP.215
DOI:
10.4028/www.scientific.net/SSP.215.368
Sprache:
Unbekannt
Verlag:
Trans Tech Publications, Ltd.
Publikationsdatum:
2014
ZDB Id:
2051138-3