Characterization of UTe single crystals and anomalous magnetic behavior

UTe単結晶の特性評価と異常磁性

Crystal structure and elemental composition of UTe single crystals with different quality are examined by means of single X-ray crystallography (XRD) and Electron Microprobe analysis (EPMA). Depending on the crystal growth condition, superconducting (SC) and non-superconducting (NS) samples were prepared. Both XRD and EPMA consistently showed uranium deficiency for the NS sample. SC sample, on the other hand, is stoichiometric within experimental errors. The normal state thermodynamic properties as a function of magnetic field showed drastic difference between SC and NS samples. The obtained results are discussed in connection with the superconductivity.

使用言語	:	English
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発表会議名	:	Chirality, Topology, and Unconventional Superconductivity in SrRuO and UTe
開催年月	:	2021/10
開催都市	:	Santa Fe
開催国	:	U.S.A.
キーワード	:	uranium compound; superconductivity; single crystal growth

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使用施設	:	第4研究棟
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