Evidence for Broken Time-Reversal Symmetry in the Superconducting Phase of URu2Si2.

Schemm, E. R. ; Baumbach, R. E. ; Tobash, P. H. ; Ronning, F. ; Bauer, E. D. ; Kapitulniken, A.

Technical Information Center Oak Ridge Tennessee

关键词: Barium Oxides;    Grand unified theory;    Fermions;    Superconducting phase;    Mass;   

RP-ID  :  DE141159452

学科分类：工程和技术（综合）

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来源: National Technical Reports Library

【 摘 要 】

Recent experimental and theoretical interest in the superconducting phase of the heavy fermion material URu2Si2 has led to a number of proposals in which the superconducting order parameterect (PKE) as a function of temperature for several high-quality single crystals of URu2Si2. We nd an onset of PKE below the superconducting transition that is consistent with a TRS-brect appears to be independent of an additional, possibly extrinsic, PKE generated above the hidden order transition at THO = 17:5 K, and contains structure below Tc suggestive of additional physics within the superconducting state.