Critical currents and irreversibility lines in Hg 1-x Tl x Ba 2 (Ca 0.86 Sr 0.14 ) 2 Cu 3 O 8+δ

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

Research output: Contribution to journalArticle

1 Citation (Scopus)

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-x Tl x Ba 2 (Ca 0.86 Sr 0.14 ) 2 Cu 3 O 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 languageEnglish
Pages (from-to)185-188
Number of pages4
JournalSolid State Communications
Volume98
Issue number2
DOIs
Publication statusPublished - 1996 Jan 1

Fingerprint

Flux pinning
Critical currents
critical current
Temperature distribution
Substitution reactions
Doping (additives)
Magnetic fields
augmentation
flux pinning
temperature distribution
substitutes
current density
Temperature
temperature dependence
magnetic fields

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

Cite this

Yoo, Kyung-hwa ; Hur, N. H. ; Kim, I. S. ; Kim, Y. B. ; Park, Y. K. ; Park, J. C. ; Song, Y. Y. ; Yu, S. C. / Critical currents and irreversibility lines in Hg 1-x Tl x Ba 2 (Ca 0.86 Sr 0.14 ) 2 Cu 3 O 8+δ In: Solid State Communications. 1996 ; Vol. 98, No. 2. pp. 185-188.
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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-x Tl x Ba 2 (Ca 0.86 Sr 0.14 ) 2 Cu 3 O 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.",
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Critical currents and irreversibility lines in Hg 1-x Tl x Ba 2 (Ca 0.86 Sr 0.14 ) 2 Cu 3 O 8+δ . / Yoo, Kyung-hwa; Hur, N. H.; Kim, I. S.; Kim, Y. B.; Park, Y. K.; Park, J. C.; Song, Y. Y.; Yu, S. C.

In: Solid State Communications, Vol. 98, No. 2, 01.01.1996, p. 185-188.

Research output: Contribution to journalArticle

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T1 - Critical currents and irreversibility lines in Hg 1-x Tl x Ba 2 (Ca 0.86 Sr 0.14 ) 2 Cu 3 O 8+δ

AU - Yoo, Kyung-hwa

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.

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N2 - 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-x Tl x Ba 2 (Ca 0.86 Sr 0.14 ) 2 Cu 3 O 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.

AB - 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-x Tl x Ba 2 (Ca 0.86 Sr 0.14 ) 2 Cu 3 O 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.

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