研究者詳細 - 中西　真

MISC - 中西　真

分割表示 88 件中 61 - 80 件目／全件表示 >>

Synthesis and Properties of Pb-Doped Bi-2212 Phase

Y. Kusano, A.Doi, M.Nakanishi, T.Fujii, J.Tadkada, Y.Ikeda, M.Takano

Key Engineering Materials 2002年

Exchange Coupling and Spin-Flip Transition of CoFe2O4/a-Fe2O3 Bilayered Films

T. Fujii, T. Yano, M. Nakanishi, J. Takada

Mat. Res. Soc. Symp. Proc. 674 2001年

Low-temperature growth of c-axis oriented Y-type hexagonal ferrite thin films by the polymeric precursor method

T.Fujii, A. Harano, M.Nakanishi, J.Takada

J. Mater. Res, 16 ( 9 ) 2471 - 2474 2001年

重イオン照射によるBi系超伝導体へのピニングセンターの導入

高田潤, 菊池丈幸, 中西真, 藤井達生, 長江正寛, 草野圭弘, 池田靖訓, 安田仲宏, 村上健

NIRS-M (Natl Inst Radiol Sci) ( 139 ) 203 - 204 2000年4月

プレセラミックス法によるNi-Znフェライト/SiC系複合焼結体の作製と電磁波吸収特性（共著）

中西真, 吉野正樹, 藤井達生, 高田潤, 福原実

粉体および粉末冶金 47 ( 8 ) 927 - 930 2000年

Preparation and absorption characteristics of Ni-Zn ferrite/SiC sintered composites prepared by pre-ceramics method

Makoto Nakanishi, Masaki Yoshino, Tatsuo Fujii, Jun Takada, Minoru Fukuhara

Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy 47 ( 8 ) 927 - 930 2000年

記述言語：日本語出版者・発行元：Funtai Funmatsu Yakin Kyokai

Ni-Zn ferrite/SiC sintered composite was prepared as electromagnetic wave absorber through pre-ceramics method and subsequent annealing at 1273 K. Amorphous SiC particles dispersed uniformly in Ni-Zn ferrite matrix and the density of the composites decreased with increasing the amount of SiC particles. The absorption characteristics of the sintered composite were found to depend upon the amount of SiC particles. The matching frequency of the composites shifted toward higher frequency, from about 100 MHz to 1 GHz, with increasing the amount of SiC particles.

DOI： 10.2497/jjspm.47.927

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ヘリコンスパッタ法によるCoFe_2O_4/α-Fe_2O_3二層膜の作製

矢野拓哉, 藤井達生, 中西真, 高田潤

日本応用磁気学会学術講演概要集 = Digest of ... annual conference on magnetics in Japan 23 20 - 20 1999年10月

重イオン照射によるBi系超伝導体へのピニングセンターの導入

高田潤, 菊池丈幸, 中西真, 長江正寛, 草野圭弘, 池田靖訓, 高野幹夫, 安田仲宏, 村上健

NIRS-M (Natl Inst Radiol Sci) ( 133 ) 211 - 212 1999年4月

25a-PS-116 V_XNbS_<2-δ>の構造と磁性

松野幸泰, 中西真, 藤井達生, 高田潤

日本物理学会講演概要集 53 ( 2 ) 475 - 475 1998年9月

LiドープBi2212相に関する分光学的研究

高田潤, 中西真, 菊池丈幸, 藤井達生, 長田実, 垣花真人

東京工業大学応用セラミックス研究所共同利用研究報告書 1997 74 1998年9月

電極反応によるBi-2212相へのLiのインターカレーション/ディインターカレーション

中西真, 上住義明, 藤原正志, 高田潤, 草野圭弘, 武田保雄, 池田靖訓

粉体および粉末冶金 45 ( 7 ) 666 - 669 1998年

記述言語：日本語出版者・発行元：Japan Society of Powder and Powder Metallurgy

The effects of electrochemical removal reaction of lithium from the Li-doped Bi-2212 phase on its structure and superconducting properties have been studied. Lithium was inserted into and removed from Bi₂Sr_1.5Ca_1.5Cu₂O_z through an electrochemical. method at a constant applied potential at room temperature. The original crystal symmetry, tetragonal structure, was maintained and any secondary phase was not formed throughout the electrochemical reactions. Lattice parameter c of the doped samples, Li_xBi₂Sr_1.5Ca_1.5Cu₂O_z, decreased and Tc changed reversibly as the lithium content x decreased, It reveals that the electrochemical reactions were intercalation/deintercalation of the Bi-2212 phase with lithium.

DOI： 10.2497/jjspm.45.666

CiNii Article

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その他リンク： https://jlc.jst.go.jp/DN/JALC/00054393127?from=CiNii

反応性蒸着法によるFeTiO_3-α-Fe_2O_3固溶体薄膜の作製

藤井達生, 阿山兼士, 中西真, 高田潤

日本応用磁気学会学術講演概要集 = Digest of ... annual conference on magnetics in Japan 21 457 - 457 1997年10月

28a-PS-82 バナジウムカルコゲナイドの磁気転移II

中西真, 藤井達生, 高田潤, 吉村一良, 小菅皓二, 後藤恒昭

日本物理学会講演概要集 52 ( 1 ) 424 - 424 1997年3月

Li Doping into the Pb substituted Bi-2212 Phase by Electrochemical Method

Hirofumi Joko, Masashi Fujiwara, Makoto Nakanishi, Tatsuo Fujii, Jun Takada, Yoshihiro Kusano, Yasuo Takeda, Yasunori Ikeda, Mikio Takano, Yoshichika Bando

Journal of the Japan Society of Powder and Powder Metallurgy 44 ( 8 ) 792 - 796 1997年

Effects of electrochemical Li-doping to the Pb-substituted Bi-2212 phase on its structural and superconducting properties were studied. Bi Pb Sr Ca Cu O was lithiated through an electrochemical method at constant applied potential at room temperature. In the electrochemically Li-doping samples, the original crystal symmetry, tetragonal structure, was maintained and any secondary phase was not formed. The amount of doped Li for Bi Pb Sr Ca Cu O was much lager than that for Bi Sr Ca Cu O at the same reaction periods. Analysed maximum Li content y for Li Bi Pb Sr Ca Cu O was found to be 0.53, which was remarkably high in comparison with y=0.37 for Li Bi Sr Ca Cu O . The lattice parameters (a,c) of Li Bi Pb Sr Ca Cu O increased continuously in a similar trend to that of Li Bi Sr Ca Cu O . Tc remains almost constant around 85K as the Li content y increased. 1.8 0.2 1.5 1.5 2 z 1.8 0.2 1.5 1.5 2 z 2 1.5 1.5 2 z y 1.8 0.2 1.5 1.5 2 z y 2 1.5 1.5 2 z y 1.8 0.2 1.5 1.5 2 z y 2 1.5 1.5 2 z

DOI： 10.2497/jjspm.44.792

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Yb-Cu系の状態図と物性 III

辻井直人, 何軍輝, 中西真, 吉村一良, 小菅こう二

粉体粉末冶金協会講演概要集 1997 1997年