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- W2017478843 abstract "The temperature dependence of the magnetic anisotropy and the magnetization of 2–40 monolayers of Fe ultra-thin films grown by molecular beam epitaxy on {4×6}GaAs(0 0 1) at room temperature has been investigated by means of in situ ferromagnetic resonance and in situ scanning superconducting quantum interference device magnetometry in ultrahigh vacuum at 40<T<400 K. The temperature dependence of the perpendicular uniaxial anisotropy is found to be related to the magnetization according to the well-established Callen–Callen power-law K2⊥(T)/K2⊥(0)∝[M(T)/M(0)]Γ with Γ=2.9±0.2 confirming that the single-ion anisotropy model is appropriate for epitaxial Fe films on GaAs. Furthermore, the volume K2⊥v(T) and the surface/interface K2⊥s,eff(T) contribution to the perpendicular uniaxial anisotropy were distinguished and measured as a function of temperature. The extrapolation of the experimentally found anisotropy constants to zero Kelvin yields the values K2⊥s,eff(T→0)=1.26±0.1×10-3J/m2 (649±51.5 μeV/atom) and K2⊥v(T→0)=4±9×104J/m3 (3±7 μeV/atom). A magneto-elastic model, which accounts for the measured effects is presented." @default.
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- W2017478843 title "Temperature-dependent correlation of magnetic anisotropy and magnetization in Fe monolayers on {4×6}GaAs(001)" @default.
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- W2017478843 doi "https://doi.org/10.1016/j.jmmm.2007.02.140" @default.
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