Magnetization in the superconducting state of UPt3 from polarized neutron diffraction

Article

关键词: ODD-PARITY SUPERCONDUCTIVITY;    UPPER CRITICAL-FIELD;    PT-195 KNIGHT-SHIFT;    ORDER-PARAMETER;    SINGLE-CRYSTALS;    MOMENT;    PHASES;    IDENTIFICATION;    FLUCTUATIONS;    MAGNETISM;   

DOI  :  10.1103/PhysRevB.86.104510

来源: SCIE

【 摘 要 】

The heavy-fermion superconductor UPt3 is thought to have odd parity, a state for which the temperature dependence of the spin susceptibility is an important signature. In order to address conflicting reports from two different experiments, the NMR Knight shift and measurements of the anisotropy of the upper critical field, we have measured the bulk susceptibility in a high-quality single crystal using polarized neutron diffraction. A temperature-independent susceptibility was observed for H parallel to a through the transitions between the normal state and the superconducting A, B, and C phases, consistent with odd-parity, spin-triplet superconductivity.

【 授权许可】

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