TY - JOUR
T1 - Structural and superconducting properties of iodine-intercalated Bi2Sr2Ca1-xYxCu2Oz
AU - Muraoka, Y.
AU - Kikuchi, M.
AU - Ohnishi, N.
AU - Hiraga, K.
AU - Suzuki, R.
AU - Kobayashi, N.
AU - Syono, Y.
N1 - Funding Information:
University, and M. Nagoshi, NKK Corporation, for unpublished XPS data. This work was partly supported by a Grant-in-Aid for Scientific Research on Priority Areas, "Science of High Tc Superconductivity", given by the Ministry of Education, Science and Culture, Japan.
PY - 1992/12/20
Y1 - 1992/12/20
N2 - The structual and superconducting properties of Bi2Sr2Ca1-xYxCu2Oz intercalated with iodine between the Bi-O bila yers were studied. Formation of the stage-1 compound was verified by X-ray analysis, TG analysis and TEM observation. Expansion of the c-axis, which is caused by increase in the distance of the BiO-BiO layers, decreases with decreasing intercalated iodine concentration down to 60%. The expansion of the c-axis of fully intercalated compounds increases with increasing Y content from 7.2 Å for x=0 to 7.5 Å for x=1.0. The temperature dependence of resistivity showed that iodine-doped samples (x=0 and 0.4) were more semiconductive than non-doped samples. The Tc of the IBi2Sr2Ca1-xYxCu2Oz series in the over-doped region was reduced by 2-10 K compared with non-intercalated samples.
AB - The structual and superconducting properties of Bi2Sr2Ca1-xYxCu2Oz intercalated with iodine between the Bi-O bila yers were studied. Formation of the stage-1 compound was verified by X-ray analysis, TG analysis and TEM observation. Expansion of the c-axis, which is caused by increase in the distance of the BiO-BiO layers, decreases with decreasing intercalated iodine concentration down to 60%. The expansion of the c-axis of fully intercalated compounds increases with increasing Y content from 7.2 Å for x=0 to 7.5 Å for x=1.0. The temperature dependence of resistivity showed that iodine-doped samples (x=0 and 0.4) were more semiconductive than non-doped samples. The Tc of the IBi2Sr2Ca1-xYxCu2Oz series in the over-doped region was reduced by 2-10 K compared with non-intercalated samples.
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U2 - 10.1016/0921-4534(92)90573-U
DO - 10.1016/0921-4534(92)90573-U
M3 - Article
AN - SCOPUS:0026962348
VL - 204
SP - 65
EP - 70
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 1-2
ER -