CRITICAL EXPONENTS OF ALPHA-IRRADIATED BI-2212 SUPERCONDUCTORS IN THEPARACOHERENCE REGION

Authors
GHOSH AK BANDYOPADHYAY SK SEN P BARAT P BASU AN
Citation
Ak. Ghosh et al., CRITICAL EXPONENTS OF ALPHA-IRRADIATED BI-2212 SUPERCONDUCTORS IN THEPARACOHERENCE REGION, Modern physics letters B, 12(20), 1998, pp. 829-837
Citations number
22
Categorie Soggetti
Physics, Applied","Physics, Condensed Matter","Physycs, Mathematical
Journal title
Modern physics letters B → ACNP
ISSN journal
02179849
Volume
12
Issue
20
Year of publication
1998
Pages
829 - 837
Database
ISI
SICI code
0217-9849(1998)12:20<829:CEOABS>2.0.ZU;2-#
Abstract
The relation between the excess conductivity and the critical exponent of conductivity is discussed in the paracoherence region. The critica l exponents vary with alpha-particle irradiation of Bi2Sr2CaCu2O8+x (B i-2212) superconductors. The role of the Harris' criteria is discussed . The normalized Josephson coupling energy is calculated and its varia tion temperature is plotted both for the unirradiated and irradiated B i-2212 samples. Effects of the variation of normalized Josephson coupl ing energy are discussed in the light of variations of critical temper ature and grain volumes.