Magnetic Anisotropy of Strained Epitaxial Manganite Films
Artikel i vetenskaplig tidskrift, 2011

The in-plane magnetic anisotropy of epitaxial La(0.7)Sr(0.3)MnO(3) (LSMO) films is studied at room temperature by the following three independent techniques: magnetooptical Kerr effect, ferromagnetic resonance at a frequency of 9.61 GHz, and recording of absorption spectra of electromagnetic radiation at a frequency of 290.6 MHz. The films are deposited onto NdGaO(3) (NGO) substrates in which the (110) NGO plane is tilted at an angle of 0-25.7 degrees to the substrate plane. The uniaxial magnetic anisotropy induced by the strain of the film is found to increase with the tilt angle of the (110) NGO plane. A model is proposed to describe the change in the magnetic anisotropy energy with the tilt angle. A sharp increase in the radio-frequency absorption in a narrow angular range of a dc magnetic field near a hard magnetization axis is detected The anisotropy parameters of the LSMO films grown on (110) NGO, (001) SrTiO(3), and (001)[(LaAlO(3))(0.3) + (Sr(2)AlTaO(6))(0.7)] substrates are compared.

Författare

V. V. Demidov

National Research University of Electronic Technology (MIET)

I. V. Borisenko

National Research University of Electronic Technology (MIET)

A. A. Klimov

National Research University of Electronic Technology (MIET)

Gennady Ovsyannikov

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

A. M. Petrzhik

National Research University of Electronic Technology (MIET)

S. A. Nikitov

National Research University of Electronic Technology (MIET)

Journal of Experimental and Theoretical Physics

1063-7761 (ISSN) 1090-6509 (eISSN)

Vol. 112 5 825-832

Ämneskategorier

Fysik

DOI

10.1134/s1063776111040029

Mer information

Skapat

2017-10-07