Critical currents and irreversibility lines in Hg1-xTlxBa2(Ca0.86Sr 0.14)2Cu3O8+δ

K. H. Yoo; N. H. Hur; I. S. Kim; Y. B. Kim; Y. K. Park; J. C. Park; Y. Y. Song; S. C. Yu

doi:10.1016/0038-1098(95)00571-4

Critical currents and irreversibility lines in Hg_1-xTl_xBa₂(Ca_0.86Sr _0.14)₂Cu₃O_8+δ

K. H. Yoo, N. H. Hur, I. S. Kim, Y. B. Kim, Y. K. Park, J. C. Park, Y. Y. Song, S. C. Yu

Department of Physics

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Abstract

We report the temperature and magnetic field dependences of critical current densities J_c(H-, T) and the irreversibility lines H_irr(T) for Hg_1-xTl_xBa₂(Ca_0.86Sr _0.14)₂Cu₃O_8+delta; (x = 0.0, 0.25, 0.50 and 0.75). The partial substitution of Tl for Hg leads to significant enhancement of J_c-and H_irr without changing T_c. This enhancement is attributed to an improvement in the flux pinning capability by the Tl doping. The temperature dependence of J_c and H_irr follows a power law: J_c ∝ (1 - T/T_c)^v and H_irr ∝ (1 - T/T_c)^α with the values of v and α decreasing as the Tl content increases.

Original language	English
Pages (from-to)	185-188
Number of pages	4
Journal	Solid State Communications
Volume	98
Issue number	2
DOIs	https://doi.org/10.1016/0038-1098(95)00571-4
Publication status	Published - 1996 Apr

All Science Journal Classification (ASJC) codes

Chemistry(all)
Condensed Matter Physics
Materials Chemistry

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@article{75fdfcd3f66d4fb0a2432f5a75ffd2b1,

title = "Critical currents and irreversibility lines in Hg1-xTlxBa2(Ca0.86Sr 0.14)2Cu3O8+δ",

abstract = "We report the temperature and magnetic field dependences of critical current densities Jc(H-, T) and the irreversibility lines Hirr(T) for Hg1-xTlxBa2(Ca0.86Sr 0.14)2Cu3O8+delta; (x = 0.0, 0.25, 0.50 and 0.75). The partial substitution of Tl for Hg leads to significant enhancement of Jc-and Hirr without changing Tc. This enhancement is attributed to an improvement in the flux pinning capability by the Tl doping. The temperature dependence of Jc and Hirr follows a power law: Jc ∝ (1 - T/Tc)v and Hirr ∝ (1 - T/Tc)α with the values of v and α decreasing as the Tl content increases.",

author = "Yoo, {K. H.} and Hur, {N. H.} and Kim, {I. S.} and Kim, {Y. B.} and Park, {Y. K.} and Park, {J. C.} and Song, {Y. Y.} and Yu, {S. C.}",

year = "1996",

month = apr,

doi = "10.1016/0038-1098(95)00571-4",

language = "English",

volume = "98",

pages = "185--188",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Limited",

number = "2",

}

TY - JOUR

T1 - Critical currents and irreversibility lines in Hg1-xTlxBa2(Ca0.86Sr 0.14)2Cu3O8+δ

AU - Yoo, K. H.

AU - Hur, N. H.

AU - Kim, I. S.

AU - Kim, Y. B.

AU - Park, Y. K.

AU - Park, J. C.

AU - Song, Y. Y.

AU - Yu, S. C.

PY - 1996/4

Y1 - 1996/4

N2 - We report the temperature and magnetic field dependences of critical current densities Jc(H-, T) and the irreversibility lines Hirr(T) for Hg1-xTlxBa2(Ca0.86Sr 0.14)2Cu3O8+delta; (x = 0.0, 0.25, 0.50 and 0.75). The partial substitution of Tl for Hg leads to significant enhancement of Jc-and Hirr without changing Tc. This enhancement is attributed to an improvement in the flux pinning capability by the Tl doping. The temperature dependence of Jc and Hirr follows a power law: Jc ∝ (1 - T/Tc)v and Hirr ∝ (1 - T/Tc)α with the values of v and α decreasing as the Tl content increases.

AB - We report the temperature and magnetic field dependences of critical current densities Jc(H-, T) and the irreversibility lines Hirr(T) for Hg1-xTlxBa2(Ca0.86Sr 0.14)2Cu3O8+delta; (x = 0.0, 0.25, 0.50 and 0.75). The partial substitution of Tl for Hg leads to significant enhancement of Jc-and Hirr without changing Tc. This enhancement is attributed to an improvement in the flux pinning capability by the Tl doping. The temperature dependence of Jc and Hirr follows a power law: Jc ∝ (1 - T/Tc)v and Hirr ∝ (1 - T/Tc)α with the values of v and α decreasing as the Tl content increases.

UR - http://www.scopus.com/inward/record.url?scp=0030126260&partnerID=8YFLogxK

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U2 - 10.1016/0038-1098(95)00571-4

DO - 10.1016/0038-1098(95)00571-4

M3 - Article

AN - SCOPUS:0030126260

SN - 0038-1098

VL - 98

SP - 185

EP - 188

JO - Solid State Communications

JF - Solid State Communications

IS - 2

ER -

Critical currents and irreversibility lines in Hg_1-xTl_xBa₂(Ca_0.86Sr _0.14)₂Cu₃O_8+δ

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