Critical exponents of α-irradiated Bi-2212 superconductors in the paracoherence region

被引：0
|
作者：
Ghosh, AK [1 ]
Bandyopadhyay, SK
Sen, P
Barat, P
Basu, AN
机构：
[1] Jadavpur Univ, Dept Phys, Condensed Matter Phys Res Ctr, Calcutta 700032, W Bengal, India
[2] Bhabha Atom Res Ctr, Ctr Variable Energy Cyclotron, Calcutta 700064, W Bengal, India
来源：
MODERN PHYSICS LETTERS B | 1998年 / 12卷 / 20期
关键词：
D O I：
10.1142/S0217984998000950
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The relation between the excess conductivity and the critical exponent of conductivity is discussed in the paracoherence region. The critical exponents vary with alpha-particle irradiation of Bi2Sr2CaCu2O8+x (Bi-2212) superconductors. The role of the Harris' criteria is discussed. The normalized Josephson coupling energy is calculated and its variation temperature is plotted both for the unirradiated and irradiated Bi-2212 samples. Effects of the variation of normalized Josephson coupling energy are discussed in the light of variations of critical temperature and grain volumes.
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页码：829 / 837
页数：9
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