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- W2012507640 abstract "A weak surface magnetic anisotropy was observed in the thermal deviation of the saturation magnetization of Cu2O nanoparticles. The thermal deviation of the saturation magnetization is clearly a departure from the Bloch T3/2 law expected for isotropic systems, signaling the onset of magnetic anisotropy, and is presumably due to the high surface-to-volume ratio of the nanoparticles, and the surface atoms give rise to polarized moments. Here, we assume a uniaxial anisotropy and adopt the Heisenberg ferromagnet model for the applied magnetic field Ha-aligned moment-carrying Cu2O nanoparticles, and the surface magnetic anisotropic energy gap Δ can then be obtained from the fit, indicating that the anisotropic energy gap Δ can only be revealed at low temperatures." @default.
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- W2012507640 date "2008-01-22" @default.
- W2012507640 modified "2023-10-18" @default.
- W2012507640 title "Surface Magnetic Anisotropic Energy Gap in Cu2O Nanoparticles" @default.
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- W2012507640 doi "https://doi.org/10.1143/jjap.47.706" @default.
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