Thermally Activated Dissipation in Bi2.2Sr2Ca0.8Cu2O8+δ

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

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Abstract

A new dissipation behavior is reported in superconducting Bi2.2Sr2Ca0.8Cu2O8+δ for all temperatures below Tc and all magnetic fields exceeding Hc1. The current-independent electrical resistivity is thermally activated and can be described by an Arrhenius law with a single prefactor and a magnetic-field- and orientation-dependent activation energy U0(H,φ). This behavior is markedly different from past observations and will be discussed in terms of flux creep and flux flow. This thermally activated behavior implies a finite resistance at all temperatures and all fields exceeding Hc1 determined by the activation energy as the only parameter.
Original languageEnglish
Pages (from-to)1662-1665
Number of pages4
JournalPhysical review letters
Volume61
Issue number14
DOIs
Publication statusPublished - 3 Oct 1988
Externally publishedYes

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