Magnetic susceptibility of the normal-superconducting transition in high-purity single-crystal (formula presented) -uranium

J. L. O’Brien, A. R. Hamilton, R. G. Clark, C. H. Mielke, J. L. Smith, J. C. Cooley, D. G. Rickel, R. P. Starrett, D. J. Reilly, N. E. Lumpkin, R. J. Hanrahan, W. L. Hults

Research output: Contribution to journalArticle

Abstract

We report complex ac magnetic susceptibility measurements of a superconducting transition in very high-quality single-crystal (formula presented) -uranium using microfabricated coplanar magnetometers. We identify an onset of superconductivity at (formula presented) in both the real and imaginary components of the susceptibility which is confirmed by resistivity data. A superconducting volume fraction argument, based on a comparison with a calibration (formula presented) sample, indicates that superconductivity in these samples may be filamentary. Our data also demonstrate the sensitivity of the coplanar micro-magnetometers, which are ideally suited to measurements in pulsed magnetic fields exceeding 100 T.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume66
Issue number6
DOIs
Publication statusPublished - 1 Jan 2002
Externally publishedYes

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