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Tsujimura, Norio; Yoshida, Tadayoshi; Hoshi, Katsuya
JPS Conference Proceedings (Internet), 11, p.070003_1 - 070003_7, 2016/11
Otaka, Osamu*; Arima, Hiroshi*; Fukui, Hiroyuki*; Utsumi, Wataru; Katayama, Yoshinori; Yoshiasa, Akira*
Physical Review Letters, 92(15), p.155506_1 - 155506_4, 2004/04
Times Cited Count：51 Percentile：84.47(Physics, Multidisciplinary)Local structures around germanium in liquid germanate have been investigated by means of in situ X-ray absorption measurements up to 9 GPa at 1273 K. Liquid germanate consisting of tetrahedrally coordinated germanium contracts with increasing pressure without significant changes in the local structure up to 2.5 GPa and then shows an abrupt fourfold-to-sixfold coordination change around 3 GPa. The coordination change is completed below 4 GPa where upon a high-density liquid consisting of octahedrally coordinated germanium becomes stable. The GeO
octahedron in the high-density liquid is more compressible than that in solids.
glass under pressureOtaka, Osamu*; Yoshiasa, Akira*; Fukui, Hiroyuki*; Murai, Keiichiro*; Okube, Maki*; Takebe, Hitoshi*; Katayama, Yoshinori; Utsumi, Wataru
Journal of Physics; Condensed Matter, 14(44), p.10521 - 10524, 2002/11
Times Cited Count：18 Percentile：64.18(Physics, Condensed Matter)no abstracts in English
Yonezawa, Chushiro; Matsue, Hideaki; Miyamoto, Yutaka; Suzuki, Daisuke; Yasuda, Kenichiro; Inagawa, Jun; Saito, Yoko
Jitsuyo Gamma-sen Sokutei Handobukku, 366 Pages, 2002/06
no abstracts in English
Kinase, Sakae; Noguchi, Hiroshi; Nakamura, Takashi*
KEK Proceedings 2001-22, p.30 - 36, 2001/12
no abstracts in English
under pressureOtaka, Osamu*; Yoshiasa, Akira*; Fukui, Hiroyuki*; Murai, Keiichiro*; Okube, Maki*; Katayama, Yoshinori; Utsumi, Wataru; Nishihata, Yasuo
Journal of Synchrotron Radiation, 8(Part2), p.791 - 793, 2001/03
no abstracts in English
-ray efficiency curves for volume samples by the combination of Monte Carlo simulations and point source calibrationSaegusa, Jun; Oishi, Tetsuya; Kawasaki, Katsuya; Yoshizawa, Michio; Yoshida, Makoto; Sawahata, Tadahiro*; Honda, Tetsutaro*
Journal of Nuclear Science and Technology, 37(12), p.1075 - 1081, 2000/12
no abstracts in English
Tejima, Shogo
JNC TN8400 2000-029, 54 Pages, 2000/10
JNC-TN8400-2000-029.pdf:1.32MB
This report describes the study done by the author as a postdoctoral research associate at Japan Nuclear Cycle Development Institute. This report is divided into three parts: construction of a relativistic band calculation formalism based on the density functional theory, using this method, investigation of the electrical properties for ferromagnetic UGe and antiferromagnetic UO. (1)A relativistic band calculation (RBC) method. Band calculations for the s, p, and d electric structure have been developed well in the practical application and theoretical study. But band calculation method treating magnetic 5f electrons as actinide compounds are complicated and needed relativistic approach, so it is behind with the study of the 5f system. In this study we construct the relativistic band calculationformalism valid for magnetic 5f electrons. (2)Electric properties of UGe. The actinide compounds UGe is ferromagnetic, so the theoretical analysis is not well yet. The electric structure and fermi surface of UGe are analyzed using the RBC. The theoretical results show that UGe is heavy electron with the 5f character and are agreement with experimental one. (3)Electric structure of nuclear fuel UO. It is important to understand the mechanism of the thermal conductivity of nuclear fuel as antiferromagnetic UO. The UO band calculation reflecting the thermal properties, into account of relativistic effect, have not done yes. So using the RBC the detailed electric structure of UO are obtained.
Katagiri, Masaki; Ito, Hirokuni;
Journal of Nuclear Science and Technology, 29(9), p.831 - 841, 1992/09
no abstracts in English
Harami, Taikan
JAERI-M 90-098, 77 Pages, 1990/07
no abstracts in English
IEEE Transactions on Nuclear Science, 33(1), p.651 - 654, 1986/00
Times Cited Count：0 Percentile：0.02(Engineering, Electrical & Electronic)no abstracts in English
JAERI-M 85-190, 20 Pages, 1985/11
no abstracts in English
Hoshasen, 10(2-3), p.93 - 99, 1984/00
no abstracts in English
IEEE Transactions on Nuclear Science, NS-31(1), p.316 - 319, 1984/00
no abstracts in English
;
Radioisotopes, 33(9), p.606 - 609, 1984/00
no abstracts in English
Seki, Masahiro; Sanokawa, Konomo
Teion Kogaku, 16(4), p.202 - 207, 1981/00
no abstracts in English
;
JAERI-M 9081, 14 Pages, 1980/09
no abstracts in English
; ; *; *
JAERI-M 8069, 21 Pages, 1979/02
no abstracts in English
Genshiryoku Kogyo, 25(12), p.60 - 62, 1979/00
no abstracts in English
