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Magnetic anisotropy of Ga1−xMnxAs thin films on GaAs (311)A probed by ferromagnetic resonance

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2006

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Bihler, Christian
Huebl, Hans
Brandt, Martin S.
Reinwald, Matthias
Wurstbauer, Ursula
Döppe, Matthias
Weiss, Dieter
Wegscheider, Werner

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https://doi.org/10.1063/1.2219408
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Applied Physics Letters. American Institute of Physics (AIP). 2006, 89(1), 012507. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.2219408

Zusammenfassung

We have studied the magnetic anisotropy of Ga1−xMnxAs thin films grown by low-temperature molecular beam epitaxy on GaAs (311)A substrates by means of ferromagnetic resonance spectroscopy. The angular dependence of the ferromagnetic resonance fields observed can be explained by two main contributions to the magnetic anisotropy: a cubic magnetic anisotropy field oriented along the crystallographic ⟨001⟩ axes caused by the symmetry of the GaAs host lattice, and an effective uniaxial magnetic anisotropy field along [311] presumably caused by the homoepitaxial growth of the layer. Additional smaller magnetic anisotropy contributions are discussed. Consequently, the dominating magnetic anisotropy of Ga1−xMnxAs on GaAs (311)A substrate appears to have the same origin as on GaAs (100) substrate.

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ISO 690BIHLER, Christian, Hans HUEBL, Martin S. BRANDT, Sebastian T. B. GOENNENWEIN, Matthias REINWALD, Ursula WURSTBAUER, Matthias DÖPPE, Dieter WEISS, Werner WEGSCHEIDER, 2006. Magnetic anisotropy of Ga1−xMnxAs thin films on GaAs (311)A probed by ferromagnetic resonance. In: Applied Physics Letters. American Institute of Physics (AIP). 2006, 89(1), 012507. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.2219408
BibTex
@article{Bihler2006Magne-53029,
  year={2006},
  doi={10.1063/1.2219408},
  title={Magnetic anisotropy of Ga<sub>1−x</sub>Mn<sub>x</sub>As thin films on GaAs (311)A probed by ferromagnetic resonance},
  number={1},
  volume={89},
  issn={0003-6951},
  journal={Applied Physics Letters},
  author={Bihler, Christian and Huebl, Hans and Brandt, Martin S. and Goennenwein, Sebastian T. B. and Reinwald, Matthias and Wurstbauer, Ursula and Döppe, Matthias and Weiss, Dieter and Wegscheider, Werner},
  note={Article Number: 012507}
}
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