FMR STUDY OF MBE-GROWN CO FILMS ON AL2O3 AND MGO SUBSTRATES

被引：11

作者：

GORYUNOV, YV

KHUSAINOV, MG

GARIFULLIN, IA

SCHREIBER, F

PELZL, J

ZEIDLER, T

BROHL, K

METOKI, N

ZABEL, H

机构：

[1] RUHR UNIV BOCHUM,AG FESTKORPERSPEKTROSKOPIE,INST EXPTL PHYS,D-44780 BOCHUM,GERMANY

[2] RUSSIAN ACAD SCI,KAZAN PHYSICOTECH INST,KAZAN 420029,RUSSIA

[3] RUHR UNIV BOCHUM,INST EXPTL PHYS,D-44780 BOCHUM,GERMANY

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1994年 / 138卷 / 1-2期

关键词：

Anisotropy - Cobalt - Ferromagnetic resonance - Magnesia - Magnetic domains - Magnetic fields - Magnetism - Molecular beam epitaxy - Sapphire - Structure (composition) - Substrates;

D O I：

10.1016/0304-8853(94)90419-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

FMR studies of epitaxial Co(0001) films on Al2O3(112BAR0) and Co(112BAR0) on MgO(001) substrates have been performed at the X-band and in the temperature range 80-400 K. For the samples on sapphire substrates the resonance field behavior as a function of the dc magnetic field orientation in the plane of the film exhibits a uniaxial anisotropy. In contrast, for the Co films on MgO substrates a fourfold anisotropy in the film plane has been observed. Both in-plane anisotropies are unexpected with regard to the Co film structure. The FMR analysis shows that the fourfold anisotropy for Co/MgO occurs due to a twinned film structure consisting of two Co domains with their c-axes in the film plane and perpendicular to each other.

引用

页码：216 / 221

页数：6

共 9 条

[1] TEMPERATURE-VARIATION OF FERROMAGNETIC RELAXATION IN 3D TRANSITION-METALS [J].