Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Masaru Komukae"'
Publikováno v:
Ferroelectrics. 485:68-72
The dielectric constant of monoclinic Rb(H0.7D0.3)2PO4 was measured in a temperature range covering the ferrielectric phase transition temperature at various hydrostatic pressures below 0.45 GPa. All the dielectric constant showing a pronounced devia
Publikováno v:
Ferroelectrics. 462:64-69
The crystal of CsH3(SeO3)2 was confirmed to be triclinic system with the space group P and to have a superlattice structure below the antiferroelectric phase transition temperature (TN = 149 K). The crystal structure was studied at 103 K below TN by
Autor:
Poul Olade Velasco, Jeng Long Chen, Tetsuya Nishina, Eisuke Magome, Jinghua Guo, Tohru Higuchi, Masaru Komukae, Wang Li Yang, Masanori Fukunaga
Publikováno v:
Ferroelectrics. 416:90-94
The problem of resolving molecular components of the electronic structure of KH2PO4 single crystal with respect to its chemical and orbital character has been approached by X-ray absorption spectroscopy (XAS) and soft X-ray emission spectroscopy (SXE
Autor:
Daisuke Matsui, Yusuke Tao, Masanori Fukunaga, Satoshi Tomioka, Masaru Komukae, Eisuke Magome
Publikováno v:
Ferroelectrics. 415:9-13
Measurement of the dielectric constant along the polar axis for tetragonal and monoclinic Rb(H1-x D x )2PO4 crystals was carried out under the hydrostatic pressure using by an LCR mater. The values of the pressure derivative of the transition tempera
Publikováno v:
Ferroelectrics. 378:157-162
The disordered structure of the zero-dimensional hydrogen-bond type crystal Rb 3 H(SeO 4 ) 2 was determined in the high-temperature trigonal phase. The observed Rb(1)-O(1a) atomic distances are considerably shorter than the other Rb-O. The structure
Publikováno v:
Ferroelectrics. 378:152-156
Crystal structure of dimethylammonium dihydrogen phosphate has been determined in the paraelectric phase at 298 K and in the ferroelectric phase at 223 K by a single crystal neutron diffraction method. Two inequivalent protons in the hydrogen bonds f
Publikováno v:
Ferroelectrics. 346:120-124
Ferroelastic phase transition in TlH 2 PO 4 has been investigated by means of neutron diffraction using single-crystal sample. The average structures of TlH2PO 4 in the phases I and II have been determined. The crystal analysis with anisotropic therm
Publikováno v:
Ferroelectrics. 346:125-129
Neutron crystal structure analysis of the tetragonal and monoclinic RbD 2 PO 4 crystals have been perfomed in the high-temperature phase and the intermediate phase, respectively. The structure refinement revealed that the PO 4 tetrahedra and the D at
Publikováno v:
Materials Chemistry and Physics. 100:520-523
We have carried out the optical observation, electrical conductivity and 205 Tl NMR measurements, and subsequently investigated the origin of the large conductivity above ferroelastic phase transition temperature T c (=661 K) on the basis of the doma
Publikováno v:
Journal of the Physical Society of Japan. 73:1812-1815
Heat capacity of glycinium phosphite was measured by adiabatic calorimetry in a temperature range from 90 K to 300 K. A λ-type anomaly characteristic of the second order phase transition was observed at 224.3 K ( T C ). The jump of the heat capacity