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27 April 2024

» arxiv » cond-mat/0208501

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Magnetic susceptibility of the normal-superconducting transition in high-purity single-crystal alpha-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 ; Jr. ; W.L. Hults ;
Date:	26 Aug 2002
Journal:	Phys. Rev. B 66, 064523 (2002) DOI: 10.1103/PhysRevB.66.064523
Subject:	Superconductivity \| cond-mat.supr-con
Abstract:	We report complex ac magnetic susceptibility measurements of a superconducting transition in very high-quality single-crystal alpha-uranium using microfabricated coplanar magnetometers. We identify an onset of superconductivity at T~0.7 K 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 YBCO sample, indicates that the 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.
Source:	arXiv, cond-mat/0208501
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