固体涡旋物质的纠缠：Bi2Sr2CaCu2O8 +y中层间相相干无序强迫的回旋镖形约化
Entanglement of Solid Vortex Matter: A Boomerang Shaped Reduction Forced by Disorder in Interlayer Phase Coherence in Bi2Sr2CaCu2O8+y
摘要：
我们提出的证据纠缠固体涡旋物质在玻璃态的层状超导体Bi $_2$ Sr $_2$ CaCu $_2$ O $_{8+y}$含有随机张开的线性缺陷。层间相位相干性-探测约瑟夫森等离子体共振-在高温下增强，反映了缺陷的涡旋液体的再耦合。在低温下的涡旋固体状态，层间相干性遵循回飞镖形的再入温度路径，具有不寻常的低场相干性降低，指示曲折的涡旋。我们发现了一个不同的温度标度面内和面外的临界电流场和时间的依赖关系相反，符合理论上提出的“splayed-glass”状态。
英文摘要：
We present evidence for entangled solid vortex matter in a glassy state in a layered superconductor Bi$_2$Sr$_2$CaCu$_2$O$_{8+y}$ containing randomly splayed linear defects. The interlayer phase coherence--probed by the Josephson plasma resonance--is enhanced at high temperatures, reflecting the recoupling of vortex liquid by the defects. At low temperatures in the vortex solid state, the interlayer coherence follows a boomerang-shaped reentrant temperature path with an unusual low field decrease in coherence, indicative of meandering vortices. We uncover a distinct temperature scaling between in-plane and out-of-plane critical currents with opposing dependencies on field and time, consistent with the theoretically proposed "splayed-glass" state.
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