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Angle resolved photoemission spectroscopy (ARPES) with a synchrotron radiation as an incident photon source was performed on the layered cobalt oxides Na0.8CoO2. The measured electronic structure was compared with that of the Na0.7CoO2 previously reported. The observed energy-momentum dispersion of the Na0.8CoO2 was essentially the same with that of the Na0.7CoO2 except for the small difference in...
fcc-Fe/Cu(Au) artificial superlattices were prepared on Cu (001) by an MBE method. The interatomic distance of fcc-Fe is controlled by means of epitaxial growth on Cu(Au) alloy layers in multilayered films. The epitaxial growth and artificial periodicity of films were examined by RHEED and X-ray diffraction, and the saturation magnetization of films was measured. All fcc-Fe/Cu(Au) films show ferromagnetism...
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