Kosuke Kurushima

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We investigated the charge-ordered (CO) state in spinel AlV2O4 by electron diffraction, synchrotron x-ray diffraction, and magnetic measurements. It was found that the CO structure appearing below 700 K is characterized by the formation of V clusters (heptamers), each of which is consisting of 7 vanadium atoms and is in a spin-singlet state as a total.(More)
Nanometric domain configuration of (1&#x2212;x)Pb(Mg<inf>1/3</inf>Nb<inf>2/3</inf>)O<inf>3</inf>-xPbTiO<inf>3</inf> ((1&#x2212;x)PMN-xPT) single crystals in the monoclinic phase around a morphotropic phase boundary (MPB) has been examined thoroughly by means of a transmission electron microscopy (TEM). Domain structures with hierarchically inhomogeneous(More)
Cross-sectional observation of molybdenum carbide nanocrystals inside carbon nanotubes was successfully conducted in this study. The nanocrystals were generated by irradiating as-synthesized encapsulated molybdenum oxide crystals with an intense electron beam; the most probable composition of the crystals was determined to be α-MoC1-x by electron(More)
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