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Journal Articles

Spin wave and orbital ordering in the C-type antiferromagnetic phase of Nd$$_{1-x}$$Sr$$_{x}$$MnO$$_{3}$$

Kajimoto, Ryoichi; Yoshizawa, Hideki*; Kawasaki, Ryuichi*; Noda, Kohei*; Kuwahara, Hideki*

Journal of the Physical Society of Japan, 74(1), p.502 - 503, 2005/01

 Times Cited Count:2 Percentile:19.73(Physics, Multidisciplinary)

The spin wave dispersion relation of the C-type antiferromagnetic structure in Nd$$_{0.25}$$Sr$$_{0.75}$$MnO$$_{3}$$ was determined by neutron scattering. The spin exchange interactions show a large anisotropy, which evidences the d$$_{3z^2-r^2}$$ orbital ordering along the $$c$$ axis. The exchange interaction along the $$c$$ direction is fairly large and similar to the value in the ferromagnetic metallic phase, suggesting there is finite hopping of charges along the orbital chains.

Journal Articles

Orbital excitations in LaMnO$$_3$$ studied by resonant inelastic X-ray scattering

Inami, Toshiya; Fukuda, Tatsuo; Mizuki, Junichiro; Ishihara, Sumio*; Kondo, Hiroshi*; Nakao, Hironori*; Matsumura, Takeshi*; Hirota, Kazuma*; Murakami, Yoichi*; Maekawa, Sadamichi*; et al.

Physical Review B, 67(4), p.045108_1 - 045108_6, 2003/01

 Times Cited Count:56 Percentile:87.92(Materials Science, Multidisciplinary)

We report resonant inelastic x-ray scattering experiments of the orbitally ordered manganite LaMnO$$_3$$. When incident photon energy is tuned near the Mn $$K$$ absorption edge, the spectra reveal three features at 2.5 eV, 8 eV and 11 eV. The 8 eV and 11 eV peaks are ascribed to transitions from the O 2$$p$$ bands to the empty Mn 3$$d$$ and $$4s$$/$$4p$$ bands, respectively. On the other hand, the 2.5 eV peak is considered an orbital excitation across the Mott gap, ${it i.e.}$ an electron excitation from the effective lower Hubbard band with the $$d_{3x^2-r^2}$$ and $$d_{3y^2-r^2}$$ orbital characters to the upper Hubbard band with the $$d_{y^2-z^2}$$ and $$d_{z^2-x^2}$$ ones. The weak dispersion and characteristic azimuthal angle dependence of this excitation are well reproduced by a theory which includes orbital degeneracy and strong electron correlation.

Journal Articles

Anion-exchange behavior of Rf in HCl and HNO$$_{3}$$ solutions

Haba, Hiromitsu; Tsukada, Kazuaki; Asai, Masato; Goto, Shinichi*; Toyoshima, Atsushi; Nishinaka, Ichiro; Akiyama, Kazuhiko; Hirata, Masaru; Ichikawa, Shinichi; Nagame, Yuichiro; et al.

Journal of Nuclear and Radiochemical Sciences, 3(1), p.143 - 146, 2002/06

We have investigated the sorption behavior of element 104 rutherfordium (Rf) on an anion exchange resin from HCl and HNO$$_{3}$$ solutions. In the HCl experiments, the distribution coefficients of Rf increase with an increase of HCl concentration from 7.0 M to 11.5 M, indicating that anionic species such as [Rf(OH)Cl$$_{5}$$]$$^{2-}$$ or [RfCl$$_{6}$$]$$^{2-}$$ are formed. This sorption behavior of Rf is typical of the group-4 elements Zr and Hf, and is quite different from that of the pseudo-homologue Th. It is also noted that the distribution coefficients decrease in the order Rf, Zr, Hf at 9.0 M HCl, which is consistent with the expected order of ionic radii. On the other hand, Rf appears to behave like Zr and Hf in 8 M HNO$$_{3}$$ not like Pu and Th.

Journal Articles

SANS study of Pr$$_{0.7}$$Ca$$_{0.3}$$MnO$$_{3}$$ system as 'Magnetic Relaxor'

Yamada, Yasusada; Iwase, Takeshi*; Takakura, Tomoyuki*; Suzuki, Junichi; Wakahiki, Masaya*

Journal of the Physical Society of Japan, Vol.70, Supplement A, p.70 - 72, 2001/00

no abstracts in English

Journal Articles

Neutron diffraction of hole polaron ordering in La$$_{1-x}$$Sr$$_{x}$$MnO$$_{3}$$(x$$simeqfrac{1}{8}$$)

Yamada, Yasusada; Suzuki, Junichi; Oikawa, Kenichi*; Katano, Susumu; Fernandez-Baca, J. A.*

Physical Review B, 62(17), p.11600 - 11608, 2000/11

 Times Cited Count:38 Percentile:82.95(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Change ordering in La$$_{1-x}$$Sr$$_{x}$$MnO$$_{3}$$(x$$sim$$0.12)

Inami, Toshiya; Ikeda, Naoshi*; Murakami, Yoichi*; Koyama, Ichiro*; Wakabayashi, Yusuke*; Yamada, Yasusada*

Japanese Journal of Applied Physics, 38(suppl.38-1), p.212 - 214, 1999/06

 Times Cited Count:15 Percentile:65.98(Physics, Applied)

no abstracts in English

Journal Articles

A New internal gelation process for fuel microsphere preparation without cooling initial solutions

Journal of Nuclear Materials, 254, p.14 - 21, 1998/00

 Times Cited Count:16 Percentile:76.3(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Charge ordering in low-doping rate A$$_{1-x}$$B$$_{x}$$MnO$$_{3}$$ (A:La,Pr;B:Sr,Ca)

Inami, Toshiya*; Hino, O.*; Nodo, S.*; Kaneo, Rinna*; Ikeda, Naoshi*; Yamada, Yasusada*; Katano, Susumu

Physica B; Condensed Matter, 241-243, p.433 - 435, 1998/00

 Times Cited Count:6 Percentile:42.67(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Polaron ordering in low-doping La$$_{1-x}$$Sr$$_{x}$$MnO$$_{3}$$

Yamada, Yasusada*; Hino, O.*; Nodo, S.*; Kaneo, Rinna*; Inami, Toshiya*; Katano, Susumu

Physical Review Letters, 77(5), p.904 - 907, 1996/07

 Times Cited Count:315 Percentile:98.66(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

PET-2 application for the study of plant metabolism

Kume, Tamikazu

Riken Shimpojiumu Kasokuki O Mochiita Yodenshi Riyo Gijutsu No Tenkai, 0, p.19 - 22, 1996/00

no abstracts in English

Journal Articles

Separation of light lanthanoids by centrifugal partition chromatography in 30% TBP extraction system

Abe, Hitoshi; Usuda, Shigekazu; Takeishi, Hideyo; Tachimori, Shoichi

J. Liquid Chromatogr., 16(12), p.2661 - 2672, 1993/00

no abstracts in English

Journal Articles

Nuclear fuel reprocessing of (U, Pu)O$$_{2}$$ fuel

Nuclear Technology, 90, p.186 - 190, 1990/05

 Times Cited Count:7 Percentile:60.93(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Desorption behavior of plutonium from anion-exchange resin with HNO$$_{3}$$-HI mixed acid solution

Usuda, Shigekazu; Sakurai, Satoshi; Hirata, Masaru; Umezawa, Hirokazu

Sep. Sci. Technol., 25(11-12), p.1225 - 1237, 1990/00

 Times Cited Count:1 Percentile:27.36(Chemistry, Multidisciplinary)

no abstracts in English

Journal Articles

Behavior of fission-product iodine-131 in dissolution of irradiated uranium dioxide

; ; ;

Journal of Nuclear Science and Technology, 24(11), p.931 - 936, 1987/11

 Times Cited Count:7 Percentile:60.01(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Rapid anion exchange separation of berkelium with (III) mineral acid-methyl alcohol mixtures

; *; ;

Journal of Radioanalytical and Nuclear Chemistry, Letters, 117(6), p.329 - 336, 1987/06

no abstracts in English

Journal Articles

Rapid anion exchange separation of fermium with mineral acid-methl alcohol mixed media

; ; *; ;

Journal of Radioanalytical and Nuclear Chemistry, 116(1), p.125 - 132, 1987/01

 Times Cited Count:3 Percentile:38.12(Chemistry, Analytical)

no abstracts in English

Journal Articles

Mechanism of the oxidative dissolution of UO$$_{2}$$ in HNO$$_{3}$$ solution

Journal of Nuclear Materials, 138, p.152 - 154, 1986/00

 Times Cited Count:26 Percentile:98.2(Materials Science, Multidisciplinary)

no abstracts in English

JAEA Reports

Volume Reduction of Combustible Radioactive Wastes with Acid Digestion

; ; ; ;

JAERI-M 9530, 17 Pages, 1981/06

JAERI-M-9530.pdf:0.74MB

no abstracts in English

JAEA Reports

KENO-IV Code Benchmark Calcuration,4; Slab-Cylinder Critical Configuration Uranium Nitrate Solution

; ; Shimooke, Takanori; *

JAERI-M 9026, 47 Pages, 1980/09

JAERI-M-9026.pdf:1.29MB

no abstracts in English

Journal Articles

Radiation effects on the extraction of americium(III) with di (2-ethylhexyl) phosphoric acid

Journal of Radioanalytical Chemistry, 50(1-2), p.133 - 142, 1979/00

no abstracts in English

28 (Records 1-20 displayed on this page)