Resistive upper critical fields and irreversibility lines of optimally doped high-Tc cuprates

Yoichi Ando, G. S. Boebinger, A. Passner, Lynn Schneemeyer, T. Kimura, M. Okuya, S. Watauchi, J. Shimoyama, K. Kishio, K. Tamasaku, N. Ichikawa, S. Uchida

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Abstract

We present the resistively determined upper critical field Hρc2(T) and the irreversibility lines Hρirr(T) of various high-Tc cuprates, deduced from measurements in 61-T pulsed magnetic fields applied parallel to the c axis. The shape of both Hρc2(T) and Hρirr(T) depends monotonically on the anisotropy of the material and none of the samples show saturation of Hρ(T) at low temperatures. The anomalous positive curvature d2Hρ/dT2 > 0 is the strongest in materials with the largest normal state anisotropy, regardless of whether anisotropy is varied by changing the carrier concentration or by comparing a variety of optimally doped compounds.

Original languageEnglish
Pages (from-to)12475-12479
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume60
Issue number17
DOIs
StatePublished - 1 Jan 1999

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cuprates
Anisotropy
anisotropy
Carrier concentration
curvature
Magnetic fields
saturation
magnetic fields
Temperature

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Ando, Yoichi ; Boebinger, G. S. ; Passner, A. ; Schneemeyer, Lynn ; Kimura, T. ; Okuya, M. ; Watauchi, S. ; Shimoyama, J. ; Kishio, K. ; Tamasaku, K. ; Ichikawa, N. ; Uchida, S. / Resistive upper critical fields and irreversibility lines of optimally doped high-Tc cuprates. In: Physical Review B - Condensed Matter and Materials Physics. 1999 ; Vol. 60, No. 17. pp. 12475-12479.
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abstract = "We present the resistively determined upper critical field Hρc2(T) and the irreversibility lines Hρirr(T) of various high-Tc cuprates, deduced from measurements in 61-T pulsed magnetic fields applied parallel to the c axis. The shape of both Hρc2(T) and Hρirr(T) depends monotonically on the anisotropy of the material and none of the samples show saturation of Hρ(T) at low temperatures. The anomalous positive curvature d2Hρ/dT2 > 0 is the strongest in materials with the largest normal state anisotropy, regardless of whether anisotropy is varied by changing the carrier concentration or by comparing a variety of optimally doped compounds.",
author = "Yoichi Ando and Boebinger, {G. S.} and A. Passner and Lynn Schneemeyer and T. Kimura and M. Okuya and S. Watauchi and J. Shimoyama and K. Kishio and K. Tamasaku and N. Ichikawa and S. Uchida",
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Ando, Y, Boebinger, GS, Passner, A, Schneemeyer, L, Kimura, T, Okuya, M, Watauchi, S, Shimoyama, J, Kishio, K, Tamasaku, K, Ichikawa, N & Uchida, S 1999, 'Resistive upper critical fields and irreversibility lines of optimally doped high-Tc cuprates', Physical Review B - Condensed Matter and Materials Physics, vol. 60, no. 17, pp. 12475-12479. https://doi.org/10.1103/PhysRevB.60.12475

Resistive upper critical fields and irreversibility lines of optimally doped high-Tc cuprates. / Ando, Yoichi; Boebinger, G. S.; Passner, A.; Schneemeyer, Lynn; Kimura, T.; Okuya, M.; Watauchi, S.; Shimoyama, J.; Kishio, K.; Tamasaku, K.; Ichikawa, N.; Uchida, S.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 60, No. 17, 01.01.1999, p. 12475-12479.

Research output: Contribution to journalArticleResearchpeer-review

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T1 - Resistive upper critical fields and irreversibility lines of optimally doped high-Tc cuprates

AU - Ando, Yoichi

AU - Boebinger, G. S.

AU - Passner, A.

AU - Schneemeyer, Lynn

AU - Kimura, T.

AU - Okuya, M.

AU - Watauchi, S.

AU - Shimoyama, J.

AU - Kishio, K.

AU - Tamasaku, K.

AU - Ichikawa, N.

AU - Uchida, S.

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N2 - We present the resistively determined upper critical field Hρc2(T) and the irreversibility lines Hρirr(T) of various high-Tc cuprates, deduced from measurements in 61-T pulsed magnetic fields applied parallel to the c axis. The shape of both Hρc2(T) and Hρirr(T) depends monotonically on the anisotropy of the material and none of the samples show saturation of Hρ(T) at low temperatures. The anomalous positive curvature d2Hρ/dT2 > 0 is the strongest in materials with the largest normal state anisotropy, regardless of whether anisotropy is varied by changing the carrier concentration or by comparing a variety of optimally doped compounds.

AB - We present the resistively determined upper critical field Hρc2(T) and the irreversibility lines Hρirr(T) of various high-Tc cuprates, deduced from measurements in 61-T pulsed magnetic fields applied parallel to the c axis. The shape of both Hρc2(T) and Hρirr(T) depends monotonically on the anisotropy of the material and none of the samples show saturation of Hρ(T) at low temperatures. The anomalous positive curvature d2Hρ/dT2 > 0 is the strongest in materials with the largest normal state anisotropy, regardless of whether anisotropy is varied by changing the carrier concentration or by comparing a variety of optimally doped compounds.

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