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Journal Articles

Kinetic mass transfer behavior of Eu(III) in nitrilotriacetamide-impregnated polymer-coated silica particles

Miyagawa, Akihisa*; Hayashi, Naoki*; Kuzure, Yoshiaki*; Takahashi, Takumi*; Iwamoto, Hibiki*; Arai, Tsuyoshi*; Nagatomo, Shigenori*; Miyazaki, Yasunori; Hasegawa, Kenta; Sano, Yuichi; et al.

Bulletin of the Chemical Society of Japan, 96(7), p.671 - 676, 2023/07

https://doi.org/10.1246/bcsj.20230087
 Times Cited Count：2 Percentile：71.3(Chemistry, Multidisciplinary)

We investigated the distribution mechanism of Eu(III) in a single polymer-coated silica particle including nitrilotriacetamide (NTA) extractants known as HONTA and TOD2EHNTA. The present study provides a valuable approach for the evaluation and enhancement of the functionality of "single extractant-impregnated polymer-coated silica particle".

Journal Articles

Investigation of the phonon dispersion associated with superlattice reflections in the BiS$$_{2}$$-based superconductor LaBiS$$_{2}$$O$$_{0.5}$$F$$_{0.5}$$

Tamatsukuri, Hiromu; Hasegawa, Takumi*; Sagayama, Hajime*; Mizumaki, Masaichiro*; Murakami, Yoichi*; Kajitani, Joe*; Higashinaka, Ryuji*; Matsuda, Tatsuma*; Aoki, Yuji*; Tsutsui, Satoshi*

Physical Review B, 107(2), p.024303_1 - 024303_8, 2023/01

https://doi.org/10.1103/PhysRevB.107.024303
 Times Cited Count：0 Percentile：0(Materials Science, Multidisciplinary)

Journal Articles

Retreat from stress; Rattling in a planar coordination

Suekuni, Koichiro*; Lee, C. H.*; Tanaka, Hiromi*; Nishibori, Eiji*; Nakamura, Atsushi*; Kasai, Hidetaka*; Mori, Hitoshi*; Usui, Hidetomo*; Ochi, Masayuki*; Hasegawa, Takumi*; et al.

Advanced Materials, 30(13), p.1706230_1 - 1706230_6, 2018/03

https://doi.org/10.1002/adma.201706230
 Times Cited Count：51 Percentile：89.35(Chemistry, Multidisciplinary)

Thermoelectric materials for highly efficient devices must satisfy conflicting requirements of high electrical conductivity and low thermal conductivity. In this paper, we studied the crystal structure and phonon dynamics of tetrahedrites (Cu,Zn)$$_{12}$$(Sb,As)$$_{4}$$S$$_{13}$$. The results revealed that the Cu atoms in a planar coordination are rattling, which effectively scatter phonons. These findings provide a new strategy for the development of highly efficient thermoelectric materials with planar coordination.

Journal Articles

Effect of rattling motion without cage structure on lattice thermal conductivity in LaOBiS$$_{2-x}$$Se$$_x$$

Lee, C. H.*; Nishida, Atsuhiro*; Hasegawa, Takumi*; Nishiate, Hirotaka*; Kunioka, Haruno*; Kawamura, Seiko; Nakamura, Mitsutaka; Nakajima, Kenji; Mizuguchi, Yoshikazu*

Applied Physics Letters, 112(2), p.023903_1 - 023903_4, 2018/01

https://doi.org/10.1063/1.5010373
 Times Cited Count：28 Percentile：77.9(Physics, Applied)

Low energy phonons in LaOBiS$$_{2-x}$$Se$$_x$$ are studied using inelastic neutron scattering. Dispersionless flat phonon branches that are mainly associated with a large vibration of Bi atoms are observed at a relatively low energy of $$E$$ = 6 - 6.7 meV. The phonon energy softens upon Se doping owing to its heavier atomic mass than S atom and the expansion of lattice constant. Simultaneously, the lattice thermal conductivity lowered upon Se doping as the same manner of the phonon softening. These suggest that despite the lack of an oversized cage in LaOBiS$$_{2-x}$$Se$$_x$$, rattling motions of Bi atoms can scatter phonon like rattling in cage compounds, contributing to enhance the thermoelectric property.

Journal Articles

Measurement of anisotropic soft X-ray emission during radio-frequency current drive in the JFT-2M tokamak

Kawashima, Hisato; Hasegawa, Mitsuru*; Fuchs, G.*; Matoba, Toru; *; Hoshino, Katsumichi; Kawakami, Tomohide; Yamamoto, Takumi

Japanese Journal of Applied Physics, 33(6A), p.3590 - 3596, 1994/00

https://doi.org/10.1143/JJAP.33.3590
 Times Cited Count：4 Percentile：30.11(Physics, Applied)

no abstracts in English

JAEA Reports

The Measurement of the anisotropic soft X-ray emissions during radio frequency current drive on JFT-2M tokamak

Kawashima, Hisato; Hasegawa, Mitsuru*; Matoba, Toru; Uesugi, Yoshihiko; Hoshino, Katsumichi; Kawakami, Tomohide; Yamamoto, Takumi

JAERI-M 87-157, 20 Pages, 1987/10

JAERI-M-87-157.pdf:0.77MB

no abstracts in English

JAEA Reports

Magnetic fluctuations in L-mode and H-mode on the JFT-2M tokamak

Mori, Masahiro; Miura, Yukitoshi; Suzuki, Norio; Uesugi, Yoshihiko; Tamai, Hiroshi; Ogawa, Toshihide; Ogawa, Hiroaki; Otsuka, Hideo; Odajima, Kazuo; Kasai, Satoshi; et al.

JAERI-M 87-117, 13 Pages, 1987/08

JAERI-M-87-117.pdf:0.56MB

no abstracts in English

Journal Articles

Regime of improved confinement in neutral-beam-heated limiter discharges of a tokamak

Sengoku, Seio; ; Hasegawa, Mitsuru; Hoshino, Katsumichi; Kasai, Satoshi; Kawakami, Tomohide; Kawashima, Hisato; Matoba, Toru; Matsuda, Toshiaki; Matsumoto, Hiroshi; et al.

Physical Review Letters, 59(4), p.450 - 453, 1987/00

https://doi.org/10.1103/PhysRevLett.59.450
 Times Cited Count：48 Percentile：87.59(Physics, Multidisciplinary)

no abstracts in English

8 (Records 1-8 displayed on this page)
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