EPJ Web of Conferences (Jan 2018)

Temperature dependence of Gilbert damping in manganite/normal metal heterostructure

  • Shcaihulov Timur A.,
  • Demidov Victor V.,
  • Borisenko Igor V.,
  • Ovsyannikov Gennady A.

DOI
https://doi.org/10.1051/epjconf/201818502007
Journal volume & issue
Vol. 185
p. 02007

Abstract

Read online

The temperature dependence of the spin-pumping effect on the Gilbert damping in a bilayer based on epitaxial manganite film grown on neodymium galate substrate was investigated by measuring of the linewidth of the ferromagnetic resonance spectrum (FMR). Ferromagnetic resonance in thin ferromagnetic manganite La0.7Sr0.3MnO3 (LSMO) films is used to produce a spin current at the interface between a metallic and a ferromagnetic layer. Pt/LSMO/NGO, Au/LSMO/NGO and LSMO/NGO heterostrucutres were measured. An increase of the linewidth in FMR spectrum at the temperature lower liquid nitrogen temperature (77K) is observed .