The in-plane anisotropic magnetic damping of ultrathin epitaxial Co2FeAl film | Zendy

Shuang Qiao | Zendy; Wei Yan | Zendy; Shuaihua Nie | Zendy; Jianhua Zhao | Zendy; Xinhui Zhang | Zendy

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The in-plane anisotropic magnetic damping of ultrathin epitaxial Co2FeAl film

Author(s) -

Shuang Qiao,

Wei Yan,

Shuaihua Nie,

Jianhua Zhao,

Xinhui Zhang

Publication year - 2015

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4929765

Subject(s) - condensed matter physics , anisotropy , materials science , epitaxy , magnetic anisotropy , substrate (aquarium) , molecular beam epitaxy , relaxation (psychology) , kerr effect , precession , thin film , magnetic field , magnetization , optics , nanotechnology , physics , nonlinear system , layer (electronics) , psychology , social psychology , oceanography , quantum mechanics , geology

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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