Low Temperature Physics: 38, 839 (2012); https://doi.org/10.1063/1.4752097 (4 pages)
Физика Низких Температур: Том 38, Выпуск 9 (Сентябрь 2012), c. 1058-1061    ( к оглавлению , назад )

Temperature dependences of surface magnetoelastic constants of ultrathin Fe/GaAs (001) films

R. Żuberek, K. Nesteruk, K. Fronc, S. Piechota, and H. Szymczak

Institute of Physics, Polish Academy of Sciences, 32/46 Al. Lotników, 02-668 Warsaw, Poland
E-mail: szymh@ifpan.edu.pl

Received April 10, 2012

Аннотация

The magnetoelastic constants of epitaxial iron films prepared by dc magnetron sputtering on single crystal GaAs (001) substrate in argon atmosphere and covered with a protective Si layer have been investigated in the temperature range 10–300 K by means of the strain modulated ferromagnetic resonance. It has been shown that the magnetoelastic constants strongly depend on the thickness of the film. The surface components of the magnetoelastic constants have been determined and analyzed within the Néel and dipolar models. The proposed analysis of experimental data gives chance for deeper insight into mechanisms responsible for magnetostriction of iron thin films.

PACS: 75.70.Cn Magnetic properties of interfaces (multilayers, superlattices, heterostructures);
PACS: 75.80.+q Magnetomechanical effects, magnetostriction;
PACS: 75.70.Ak Magnetic properties of monolayers and thin films.

Ключевые слова: magnetoelastic constants, ferromagnetic resonance, iron films.