论文标题
在非中心超导体中，半量子通量证明了旋转三个态度的状态
Spin-triplet pairing state evidenced by half-quantum flux in a noncentrosymmetric superconductor
论文作者
论文摘要
超导材料的主要类别，在其中寻找自旋三型配对和拓扑超导性是无反转对称性的超导体。据预测，平均对称性的破裂会产生旋转式 /旋转三键配对状态的混合。三胞胎配对组件似乎很重要，几乎可以保证。但是，在任何特定材料中对配对混合的实验确认仍然难以捉摸。在这项工作中，我们执行相敏感实验，以检查非中心超导体$α-$ bipd的配对状态。在介质多晶$α-$ bipd环形设备中观察到的小公园效应揭示了一半磁通量量化的存在，这为旋转三键配对状态提供了决定性的证据。我们发现混合的半量子通量和整数 - 量子通量，与Singlet-Triplet对混合的情况一致。
A prime category of superconducting materials in which to look for spin-triplet pairing and topological superconductivity are superconductors without inversion symmetry. It is predicted that the breaking of parity symmetry gives rise to an admixture of spin-singlet / spin-triplet pairing states; a triplet pairing component, being substantial, seems all but guaranteed. However, the experimental confirmation of pair mixing in any particular material remains elusive. In this work, we perform phase-sensitive experiment to examine the pairing state of noncentrosymmetric superconductor $α-$BiPd. The Little-Parks effect observed in mesoscopic polycrystalline $α-$BiPd ring devices reveals the presence of half-integer magnetic flux quantization, which provides a decisive evidence for the spin-triplet pairing state. We find mixed half-quantum fluxes and integer-quantum fluxes, consistent with the scenario of singlet-triplet pair mixing.
