The in-plane anisotropic magnetic damping of ultrathin epitaxial Co2FeAl film
Source abstract
Abstract
The in-plane orientation-dependent effective damping of ultrathin Co2FeAl film epitaxially grown on GaAs(001) substrate by molecular beam epitaxy (MBE) has been investigated by employing the time-resolved magneto-optical Kerr effect (TR-MOKE) measurements. It is found that the interface-induced uniaxial anisotropy is favorable for precession response and the anisotropy of precession frequency is mainly determined by this uniaxial anisotropy, while the magnetic relaxation time and damping factor exhibit the fourfold anisotropy at high-field regime. The field-independent anisotropic damping factor obtained at high fields indicates that the effective damping shows an intrinsic fourfold anisotropy for the epitaxial Co2FeAl thin films.
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Research context
OpenAlex topics: Magnetic properties of thin films · ZnO doping and properties · Magneto-Optical Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute of Semiconductors 1 State Key Laboratory of Superlattices and Microstructures, , Chinese Academy of Sciences, P.O. Box 912, Beijing 100083, P. R. China
Hebei University 2 Heibei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, , Baoding 071002, P. R. China
Funding
National Basic Research Program of China
References (41)
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