Angular dependence of the upper critical field of Bi2.2Sr2Ca0. 8Cu2O8+δ

T. T.M. Palstra, B. Batlogg, L. F. Schneemeyer, R. B. Van Dover, J. V. Waszczak

Research output: Contribution to journalArticle

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Abstract

We have measured the electrical resistivity of Bi2.2Sr2Ca0.8Cu2O8+δ in the vicinity of Tc for various angles between the [CuO2] double layers of the crystal and the magnetic field. Defining Tc at the transition midpoints, we have measured values for -dHc2/dT=45 T/K and -dHc2/dT=0.75 T/K for the magnetic field parallel and perpendicular to the [CuO2] planes, respectively. This results in an anisotropy of a factor 60. The numerical results are sensitive to the definition of Tc and larger values for the anisotropy cannot be excluded. The results are compared with the anisotropic three-dimensional Ginzburg-Landau theory.

Original languageEnglish
Pages (from-to)5102-5105
Number of pages4
JournalPhysical Review B
Volume38
Issue number7
DOIs
StatePublished - 1 Jan 1988

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anisotropy
magnetic fields
electrical resistivity
crystals

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Palstra, T. T.M. ; Batlogg, B. ; Schneemeyer, L. F. ; Van Dover, R. B. ; Waszczak, J. V. / Angular dependence of the upper critical field of Bi2.2Sr2Ca0. 8Cu2O8+δ. In: Physical Review B. 1988 ; Vol. 38, No. 7. pp. 5102-5105.
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Palstra, TTM, Batlogg, B, Schneemeyer, LF, Van Dover, RB & Waszczak, JV 1988, 'Angular dependence of the upper critical field of Bi2.2Sr2Ca0. 8Cu2O8+δ', Physical Review B, vol. 38, no. 7, pp. 5102-5105. https://doi.org/10.1103/PhysRevB.38.5102

Angular dependence of the upper critical field of Bi2.2Sr2Ca0. 8Cu2O8+δ. / Palstra, T. T.M.; Batlogg, B.; Schneemeyer, L. F.; Van Dover, R. B.; Waszczak, J. V.

In: Physical Review B, Vol. 38, No. 7, 01.01.1988, p. 5102-5105.

Research output: Contribution to journalArticle

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AU - Palstra, T. T.M.

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AU - Waszczak, J. V.

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AB - We have measured the electrical resistivity of Bi2.2Sr2Ca0.8Cu2O8+δ in the vicinity of Tc for various angles between the [CuO2] double layers of the crystal and the magnetic field. Defining Tc at the transition midpoints, we have measured values for -dHc2/dT=45 T/K and -dHc2/dT=0.75 T/K for the magnetic field parallel and perpendicular to the [CuO2] planes, respectively. This results in an anisotropy of a factor 60. The numerical results are sensitive to the definition of Tc and larger values for the anisotropy cannot be excluded. The results are compared with the anisotropic three-dimensional Ginzburg-Landau theory.

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