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Journal Articles

Preparation, thermoelectric properties, and crystal structure of boron-doped Mg$$_{2}$$Si single crystals

Hayashi, Kei*; Saito, Wataru*; Sugimoto, Kazuya*; Oyama, Kenji*; Hayashi, Koichi*; Happo, Naohisa*; Harada, Masahide; Oikawa, Kenichi; Inamura, Yasuhiro; Miyazaki, Yuzuru*

AIP Advances (Internet), 10(3), p.035115_1 - 035115_7, 2020/03

 Times Cited Count:2 Percentile:100(Nanoscience & Nanotechnology)

Journal Articles

Impurity effects in the microscopic elastic properties of polycrystalline Mg-Zn-Y alloys with a synchronised long-period stacking ordered phase

Hosokawa, Shinya*; Kimura, Koji*; Yamasaki, Michiaki*; Kawamura, Yoshihito*; Yoshida, Koji*; Inui, Masanori*; Tsutsui, Satoshi*; Baron, A. Q. R.*; Kawakita, Yukinobu; Ito, Shinichi*

Journal of Alloys and Compounds, 695, p.426 - 432, 2017/02

 Times Cited Count:3 Percentile:69.06(Chemistry, Physical)

Journal Articles

Identification of the crossing point at $$N$$ = 21 between normal and intruder configurations

Lic$u{a}$, R.*; Rotaru, F.*; Borge, M. J. G.*; Gr$'e$vy, S.*; Negoita, F.*; Poves, A.*; Sorlin, O.*; Andreyev, A.; Borcea, R.*; Costache, C.*; et al.

Physical Review C, 95(2), p.021301_1 - 021301_6, 2017/02

 Times Cited Count:10 Percentile:20.59(Physics, Nuclear)

Journal Articles

Direct numerical simulation on non-equilibrium superconducting dynamics after neutron capture in MgB$$_{2}$$ superconductor

Machida, Masahiko; Koyama, Tomio*; Kato, Masaru*; Ishida, Takekazu*

Nuclear Instruments and Methods in Physics Research A, 559(2), p.594 - 596, 2006/04

 Times Cited Count:11 Percentile:35.35(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Neutronics assessment of advanced shield materials using metal hydride and borohydride for fusion reactors

Hayashi, Takao; Tobita, Kenji; Nishio, Satoshi; Ikeda, Kazuki*; Nakamori, Yuko*; Orimo, Shinichi*; DEMO Plant Design Team

Fusion Engineering and Design, 81(8-14), p.1285 - 1290, 2006/02

 Times Cited Count:18 Percentile:20.47(Nuclear Science & Technology)

Neutron transport calculations were carried out to evaluate the capability of metal hydrides and borohydrides as an advanced shielding material. Some hydrides indicated considerably higher hydrogen content than polyethylene and solid hydrogen. The hydrogen-rich hydrides show superior neutron shielding capability to the conventional materials. From the temperature dependence of dissociation pressure, ZrH$$_{2}$$ and TiH$$_{2}$$ can be used without releasing hydrogen at the temperature of less than 640 $$^{circ}$$C at 1 atm. ZrH$$_{2}$$ and Mg(BH$$_{4}$$)$$_{2}$$ can reduce the thickness of the shield by 30% and 20% compared to a combination of steel and water, respectively. Mixing some hydrides with F82H produces considerable effects in $$gamma$$-ray shielding. The neutron and $$gamma$$-ray shielding capabilities decrease in order of ZrH$$_{2}$$ $$>$$ Mg(BH$$_{4}$$)$$_{2}$$ and F82H $$>$$ TiH$$_{2}$$ and F82H $$>$$ water and F82H.

Journal Articles

Direct numerical simulations for non-equilibrium superconducting dynamics and related neutron detection in MgB$$_{2}$$

Machida, Masahiko; Koyama, Tomio*; Kato, Masaru*; Ishida, Takekazu*

Physica C, 426-431(1), p.169 - 173, 2005/10

no abstracts in English

Journal Articles

Electroplating of the superconductive boride MgB$$_{2}$$ from molten salts

Abe, Hideki*; Yoshii, Kenji; Nishida, Kenji*; Imai, Motoharu*; Kitazawa, Hideaki*

Journal of Physics and Chemistry of Solids, 66(1), p.406 - 409, 2005/01

no abstracts in English

Journal Articles

Superconducting electronics applications of metallic high-Tc substance MgB$$_{2}$$; Toward superconducting tunnel junctions and superconducting radiation detectors using thermal relaxation process

Ishida, Takekazu*; Wang, Z.*; Yotsuya, Tsutomu*; Machida, Masahiko

Kotai Butsuri, 40(1), p.51 - 67, 2005/01

no abstracts in English

Journal Articles

Superconducting properties of MgB$$_{2}$$ films electroplated to stainless steel substrates

Abe, Hideki*; Nishida, Kenji*; Imai, Motoharu*; Kitazawa, Hideaki*; Yoshii, Kenji

Applied Physics Letters, 85(25), p.6197 - 6199, 2004/12

 Times Cited Count:15 Percentile:46.3(Physics, Applied)

no abstracts in English

Journal Articles

Application of AMG to partial differential equations

Sasa, Narimasa; Machida, Masahiko; Yamada, Susumu; Arakawa, Chuichi

Keisan Kogaku Koenkai Rombunshu, 8(2), p.757 - 758, 2003/05

no abstracts in English

Journal Articles

Electrochemical synthesis of superconductive MgB$$_{2}$$ from molten salts

Yoshii, Kenji; Abe, Hideki*

Physica C, 388-389(1-4), p.113 - 114, 2003/05

no abstracts in English

Journal Articles

Neutron scattering study of magnetic ordering and excitations in the doped spin-gap system Tl(Cu$$_{1-x}$$Mg$$_{x}$$)Cl$$_{3}$$

Osawa, Akira; Fujisawa, Masashi*; Kakurai, Kazuhisa; Tanaka, Hidekazu*

Physical Review B, 67(18), p.184424_1 - 184424_8, 2003/05

 Times Cited Count:29 Percentile:22.11(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Electrochemical thin-film fabrication of superconductive boride MgB$$_{2}$$

Yoshii, Kenji; Abe, Hideki*

Kagaku To Kogyo, 56(7), p.802 - 804, 2003/00

no abstracts in English

Journal Articles

Electron irradiation effects on MgB$$_{2}$$ bulk samples

Okayasu, Satoru; Ikeda, Hiroshi*; Yoshizaki, Ryozo*

Physica C, 378-381(1-4), p.462 - 465, 2002/10

no abstracts in English

Journal Articles

Irradiation effects on MgB$$_{2}$$ bulk samples and formation of columner defects on high-Tc supercoductor

Okayasu, Satoru; Sasase, Masato; Hojo, Kiichi; Chimi, Yasuhiro; Iwase, Akihiro; Ikeda, Hiroshi*; Yoshizaki, Ryozo*; Kambara, Tadashi*; Sato, H.*; Hamatani, Yutaro*; et al.

Physica C, 382(1), p.104 - 107, 2002/10

 Times Cited Count:25 Percentile:25.55(Physics, Applied)

no abstracts in English

Journal Articles

Electrical transport properties of bulk MgB$$_{2}$$ materials synthesized by electrolysis on fused mixtures of MgCl$$_{2}$$, NaCl, KCl and MgB$$_{2}$$O$$_{4}$$

Yoshii, Kenji; Abe, Hideki*

Superconductor Science and Technology, 15(10), p.L25 - L27, 2002/10

 Times Cited Count:11 Percentile:47.43(Physics, Applied)

no abstracts in English

Journal Articles

Morphology evolution of thin Ni film on MgO(100) substrate

Lin, C.; Xu, Y. H.; Naramoto, Hiroshi; Wei, P.; Kitazawa, Shinichi; Narumi, Kazumasa

Journal of Physics D; Applied Physics, 35(15), p.1864 - 1866, 2002/08

 Times Cited Count:9 Percentile:60.38(Physics, Applied)

no abstracts in English

Journal Articles

Electrochemical synthesis of superconductive boride MgB$$_{2}$$ from molten salts

Abe, Hideki*; Yoshii, Kenji

Japanese Journal of Applied Physics, Part 2, 41(6B), p.L685 - L687, 2002/06

 Times Cited Count:8 Percentile:63.44(Physics, Applied)

no abstracts in English

Journal Articles

Application of AMG to Ginzburg-Landau equation for superconductors

Sasa, Narimasa; Machida, Masahiko; Yamada, Susumu; Arakawa, Chuichi

Keisan Kogaku Koenkai Rombunshu, 7(1), p.171 - 172, 2002/05

Algebraic Multi Grid(AMG) is applied to solve the Ginzburg-Landau equations for Superconductors. The method effectively solves large scale linear algebraic equations. AMG is also applicable for systems with complex boundary condition in contrast with usual Geometrical Multi Grid.

Journal Articles

Thermodynamics of the UO$$_{2}$$ solid solution with magnesium and europium oxides

Fujino, Takeo*; Sato, Nobuaki*; Yamada, Kota*; Nakama, Shohei*; Fukuda, Kosaku; Serizawa, Hiroyuki; Shiratori, Tetsuo*

Journal of Nuclear Materials, 297(3), p.332 - 340, 2001/09

 Times Cited Count:3 Percentile:71.47(Materials Science, Multidisciplinary)

Oxygen potential of solid solution Mg$$_{y}$$Eu$$_{z}$$U$$_{1-y-z}$$O$$_{2+x}$$ was examined as a function of O/Metal ratio at 1000, 1100 and 1200 $$^{o}$$C. The O/Metal ratio which gave the steepest change of the oxygen potential(GOM) was 1.995 for y=0.05, z=0.1 and y=0.05, z=0.05. The position decreased to 1.908 at higher Mg$$^{2+}$$ concentration of y=0.1, z=0.05. The GOM did not change with temperature in a range 1000-1200 $$^{o}$$C. At GOM, a friction of 0.473 of total Mg$$^{2+}$$ occupy the interstitial position of the fluorite lattice.

85 (Records 1-20 displayed on this page)