研究者詳細 - 村岡　祐治

論文 - 村岡　祐治

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Synthesis and superconductivity of ‘Hg2Cl2’-intercalated Bi2Sr2Can-1CunOz (n=1-3) compounds 査読

Y MURAOKA, M KIKUCHI, N OHNISHI, N KOBAYASHI, K HIRAGA, Y SYONO

Physica C 233 ( 3-4 ) 247 - 252 1994年11月

SYNTHESIS AND SUPERCONDUCTIVITY OF OXYCARBONATES OF THE TL-1201 PHASE 査読

M KIKUCHI, E OHSHIMA, N OHNISHI, Y MURAOKA, S NAKAJIMA, E AOYAGI, M OGAWA, J AKIMITSU, T OKU, K HIRAGA, Y SYONO

PHYSICA C 219 ( 1-2 ) 200 - 204 1994年1月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

TlBaxSr4-xCu2(CO3)Oy oxycarbonates with the Tl-1201 structure were synthesized over a wide range of x (1.0 less-than-or-equal-to x less-than-or-equal-to 3.2) and examined by X-ray powder diffraction, electron diffraction, high-resolution electron microscopy and magnetometry methods. New phases with the Tl-1201 structure having 6 and 7 times periodicities along the b-axis were isolated. The former was stable for a wide Ba-rich range (1.8 less-than-or-equal-to x less-than-or-equal-to 3.2), and the latter was observed for a smaller Ba content range (1.2 less-than-or-equal-to x less-than-or-equal-to 1.6). The phase stability was found to depend on the synthesis condition. The maximum T(c) of the as-synthesized specimen in this series occurred at about 70 K around x = 2.0. The Meissner volume fraction of the as-synthesized specimen (x = 2.4) was 30% at 5 K.

DOI： 10.1016/0921-4534(94)90035-3

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EFFECTS OF IODINE INTERCALATION ON THE SUPERCONDUCTING PROPERTIES OF THE BI2SR2-XLAXCUOZ COMPOUND 査読

Y MURAOKA, M KIKUCHI, H NAMEKI, S AWAJI, R SUZUKI, N KOBAYASHI, Y SYONO

PHYSICA C 215 ( 3-4 ) 402 - 406 1993年10月

STRUCTURAL AND SUPERCONDUCTING PROPERTIES OF IODINE-INTERCALATED BI2SR2CA1-XYXCU2OZ 査読

Y MURAOKA, M KIKUCHI, N OHNISHI, K HIRAGA, R SUZUKI, N KOBAYASHI, Y SYONO

PHYSICA C 204 ( 1-2 ) 65 - 70 1992年12月

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