Makoto Katsumura

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We studied the structural properties of an orbital-spin-coupled spinel oxide, MnV2O4, mainly by single-crystal x-ray diffraction measurement. It was found that a structural phase transition from cubic to tetragonal and ferrimagnetic ordering occur at the same temperature (Ts,TN=57 K). The structural phase transition was induced also by magnetic field above(More)
The paper reports the outline of the developed electron beam recorder (EBR) for the purpose of developing future optical disk storage media. A rotation stage is developed and is installed to the EBR. The EBR using the retarding field can vary the beam energy only by adjusting the high voltage for the substrate (10 keV to 50 keV)
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