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Journal Articles

Structural properties and phase transition of hole-orbital-ordered (C$$_{2}$$H$$_{5}$$NH$$_{3}$$)$$_{2}$$CuCl$$_{4}$$ studied by resonant and non-resonant X-ray scatterings under high pressure

Owada, Kenji; Ishii, Kenji; Inami, Toshiya; Murakami, Yoichi; Shobu, Takahisa*; Osumi, Hiroyuki*; Ikeda, Naoshi*; Oishi, Yasuo*

Physical Review B, 72(1), p.014123_1 - 014123_10, 2005/07

 Times Cited Count:27 Percentile:69.97(Materials Science, Multidisciplinary)

The effects of hydrostatic pressure on a structure and the corresponding resonant X-ray scattering (RXS) spectrum have been investigated for the hole-orbital-ordered compound (C$$_{2}$$H$$_{5}$$NH$$_{3}$$)$$_{2}$$CuCl$$_{4}$$. We have found a structural phase transition at Pc=4 GPa. The reduction of the Jahn-Teller distortion (JTD) toward Pc is also ascertained by structural analyses. The gradual change in the color of the crystal is also observed in connection with the structural change near Pc. We experimentally confirmed that the RXS intensity comes from the polarization of the density of states of px and py symmetries, which is mainly dominated not by the on-site 3d-4p Coulomb interaction but by the JTD of the CuCl$$_{6}$$ octahedron. The RXS study under a high pressure shows no striking change as JTD is suppressed by the application of pressure. On the other hand, the RXS intensity becomes zero above Pc. The results indicate that the local environment of the Cu$$^{2+}$$ ion markedly changes. Two possible structures above Pc are proposed.

Journal Articles

Photodissociation of highly vibrationally excited NH$$_{3}$$ in the 5$$nu_{N-H}$$ region; Initial vibrational state dipendence of N-H bond dissociation cross section

Akagi, Hiroshi; Yokoyama, Keiichi; Yokoyama, Atsushi

Journal of Chemical Physics, 118(8), p.3600 - 3611, 2003/02

 Times Cited Count:29 Percentile:67.27(Chemistry, Physical)

no abstracts in English

Journal Articles

Reactions of sulfur dioxide with ammonia; Dependence on oxygen and nitric oxide

Hirota, Koichi; J.Maekelae*; Tokunaga, Okihiro

Industrial & Engineering Chemistry Research, 35(10), p.3362 - 3368, 1996/00

 Times Cited Count:17 Percentile:72.42(Engineering, Chemical)

no abstracts in English

Journal Articles

Test structure for determining the charge distribution in the oxide of MOS structure

Takahashi, Yoshihiro*; Imaki, Shunsaku*; Onishi, Kazunori*; Yoshikawa, Masahito

Proceedings of IEEE 1995 International Coferece on Microelectronic Test Structures, Vol.8, p.243 - 246, 1995/03

no abstracts in English

Journal Articles

The Change of the charge distribution in the oxide layer of MOS structure with NH$$_{3}$$ annealing due to $$gamma$$-ray irradiation; Gate voltage dependence

Imaki, Shunsaku*; Takahashi, Yoshihiro*; Yoshikawa, Masahito; Onishi, Kazunori*

Heisei-7-Nendo Nihon Daigaku Riko Gakubu Gakujutsu Koenkai Rombunshu, 0, p.151 - 152, 1995/00

no abstracts in English

Journal Articles

Evaluation of charge distribution in insulators by means of slanted etching

Imaki, Shunsaku*; *; Takahashi, Yoshihiro*; Yoshikawa, Masahito; Onishi, Kazunori*

Heisei-5-Nendo (Dai-37-Kai) Nihon Daigaku Riko Gakubu Gakujutsu Koenkai Koen Rombunshu; Zairyo, Bussei, p.135 - 136, 1993/00

no abstracts in English

Journal Articles

Ionization of low-Rydberg-He atoms by dipole-forbidden rotational deexcitation of NH$$_{3}$$

Shirai, Toshizo; Nakamura, Hiroki*

Physical Review A, 40(12), p.7377 - 7379, 1989/12

 Times Cited Count:0 Percentile:0.15(Optics)

no abstracts in English

Journal Articles

Selective T/H separation by NH$$_{3}$$ laser multiple-photon dissociation of CTCl$$_{3}$$

; ; ; ; *

Applied Physics B, 38(2), p.99 - 105, 1985/00

 Times Cited Count:17 Percentile:65.92(Physics, Applied)

no abstracts in English

Journal Articles

Enhanced composting of radiation disinfected sewage sludge

Kawakami, Waichiro;

Radiation Physics and Chemistry, 24(1), p.29 - 40, 1984/00

no abstracts in English

Journal Articles

Radiation treatment of exhaust gases,XIII; NH$$_{3}$$ consumption in moist NO-SO$$_{2}$$-O$$_{2}$$-N$$_{2}$$ mixtures containing NH$$_{3}$$

;

Journal of Nuclear Science and Technology, 18(5), p.341 - 348, 1981/00

no abstracts in English

Journal Articles

Radiation treatment of exhaust gases, XII; NO removal in moist NO-SO$$_{2}$$-O$$_{2}$$-N$$_{2}$$ mixtures containing NH$$_{3}$$

; ;

Journal of Nuclear Science and Technology, 17(11), p.822 - 830, 1980/00

 Times Cited Count:11 Percentile:73.1(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Effect of hydrostatic pressure on the Curie temperatures of ferroelectric CH$$_{3}$$NH$$_{3}$$Al(SO$$_{4}$$)$$_{2}$$・12H$$_{2}$$O(MASD) and NaNH$$_{4}$$SeO$$_{4}$$・2H$$_{2}$$O

; Ozawa, K.; *; *

Journal of the Physical Society of Japan, 35(5), P. 1562, 1973/05

no abstracts in English

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