Experimental determination of the phase diagram of to 150 T for

J. O’Brien, H. Nakagawa

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Abstract

The (Formula presented) phase diagram for thin film (Formula presented) with B parallel to the superconducting layers has been constructed from GHz transport measurements to 150 T. Up to 110 T the upper critical field is found to be linear in T and in remarkable agreement with extrapolation of the longstanding result of Welp et al. arising from magnetization measurements to 6 T. Beyond this a departure from linear behavior occurs at (Formula presented) consistent with previous low-temperature data. Evidence for a transition from a high-(Formula presented) regime dominated by orbital effects, to a low-(Formula presented) regime, where paramagnetic limiting drives the quenching of superconductivity, is seen.

Original languageEnglish
Pages (from-to)1584-1587
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume61
Issue number2
DOIs
Publication statusPublished - 2000
Externally publishedYes

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