Ferromagnetic resonance study of MnAs∕(Ga,Mn)As bilayers | Zendy

M. Cubukcu | Zendy; H. J. von Bardeleben | Zendy; Kh. Khazen | Zendy; J. L. Cantin | Zendy; M. Zhu | Zendy; Mark Wilson | Zendy; P. Schiffer | Zendy; N. Samarth | Zendy

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Ferromagnetic resonance study of MnAs∕(Ga,Mn)As bilayers

Author(s) -

M. Cubukcu,

H. J. von Bardeleben,

Kh. Khazen,

J. L. Cantin,

M. Zhu,

Mark Wilson,

P. Schiffer,

N. Samarth

Publication year - 2009

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.3059391

Subject(s) - condensed matter physics , ferromagnetic resonance , ferromagnetism , materials science , laser linewidth , magnetocrystalline anisotropy , magnetization , magnetic anisotropy , exchange bias , magnetic field , physics , laser , quantum mechanics , optics

53rd Annual Conference on Magnetism and Magnetic Materials, Austin, TX, NOV 11-14, 2008International audienceWe report the investigation of the static and dynamic magnetic properties of type-A MnAs/Ga(0.945)Mn(0.055)As (001) bilayers. Static magnetization measurements show them to be ferromagnetically coupled with an exchange bias field of similar to 340 Oe. The magnetocrystalline anisotropy constants of the (Ga,Mn) As layer were determined by X-band ferromagnetic resonance (FMR) spectroscopy. The (Ga,Mn) As layers are magnetically inhomogeneous as evidenced by a strong broadening of the (Ga,Mn) As uniform mode linewidth. The MnAs FMR spectra reveal the presence of a small MnAs fraction with a different orientation. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3059391

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