The LiNbO3 (LN)-type oxynitrides, MnTaO2N and (1 - x) MnTaO2N-xMn(4)Ta(2)O(9) were synthesized under high pressures and at high temperatures. The new LN-type oxynitride, Mn(Mn1/6Ta5/6)O2.5N0.5 (0.75MnTaO(2)N-0.25Mn(4)Ta(2)O(9)) could be obtained w...
Daisuke Mori   Hamdi Ben Yahia   Masahiro Shikano   Nobuyuki Imanishi   Yoshiyuki Inaguma   Ilias Belharouak   
Journal of Asian Ceramic Societies 5(4) 460-465 2017年12月 [査読有り]
The compound Mn2[VO4]F was synthesized using a hydrothermal synthesis route at low temperature and its crystal structure was determined from single crystal X-ray diffraction data. Mn2[VO4]F was characterized by magnetic susceptibility and specific...
AMERICAN MINERALOGIST 102(10) 2032-2044 2017年10月 [査読有り]
High-pressure high-temperature phase relation experiments in Mg14Si5O24 were performed using a 6-8 multi-anvil high-pressure apparatus in the pressure range of 12-22 GPa and temperature range of 1673-2173 K. We first found that Mg14Si5O24 anhydrou...
Strong near-infrared luminescence under ultraviolet excitation was obtained in epitaxially grown BaSnO3 perovskite films. The films were grown on SrTiO3 (001) substrates by pulsed-laser deposition, and the crystallinity of the epitaxial growth was...
To understand luminescent mechanisms of lanthanide (Ln) doped phosphors, it is important to know the energy positions of unoccupied Ln(2+) 4f and Ln(3+) 5d states, as well as occupied Ln(3+) 4f states, relative to the energy bands of host material...