Influence of Ho-doping on the electromagnetic field-dependent E-J characteristics of (Bi,Pb)-2212 superconductor

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Title:	Influence of Ho-doping on the electromagnetic field-dependent E-J characteristics of (Bi,Pb)-2212 superconductor
Authors:	Sarun, P M Vinu, S Shabna, R Biju, A Guruswamy, P Syamaprasad, U
Keywords:	High-temperature superconductors Single crystals CU-O BI2SR2CACU2O8 Transport E-J characteristics
Issue Date:	2009
Publisher:	IEEE
Citation:	IEEE Transactions on Applied Superconductivity 19(1):35-38;Feb 2009
Abstract:	The magnetic field (B) dependence of electric field versus transport current density (E-J characteristics) of Bi(1.6)Pb(0.5)Sr(2-x)Ho(x)Ca(1.1)Cu(2.1)O(8+delta) superconductor was studied for x from 0.000 to 0.200. The behavior of supercurrent flow under magnetic fields in Ho-doped (Bi,Pb)-2212 is explained using thermally activated flux-creep. The n-value and characteristic pinning energy (U(c)) estimated from E-J characteristics show that at applied fields, the flux-lines in Ho-doped samples are in the glass-state. A correlation is observed between n-index and J(c) of doped samples. The highly enhanced critical current density (J(c)) and n-index in both self- and applied-fields due to Ho-doping is of great scientific and technological significance.
URI:	http://ir.niist.res.in:8080/jspui/handle/123456789/938
ISSN:	1051-8223
Appears in Collections:	2009

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