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arXiv 1705.01255cond-mat.str-el
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非常规超导体的自旋共振和磁序

Spin Resonance and Magnetic Order in an Unconventional Superconductor

D. G. Mazzone, S. Raymond, J. L. Gavilano, P. Steffens, A. Schneidewind, G. Lapertot, M. Kenzelmann

摘要:

许多材料中的非常规超导性被认为是由磁波动介导的。如何从超导凝聚体中产生磁序,以及它如何与非常规超导体中的磁自旋共振竞争,这是一个悬而未决的问题。在这里,我们研究了一个模型d波超导体,发展自旋密度波秩序,并发现自旋共振是不受静磁秩序的开始。这一结果表明,在Nd 0.05 Ce 0.95 CoIn 5的共振是一个纵向模式,沿有序的磁矩波动的时刻。

英文摘要:

Unconventional superconductivity in many materials is believed to be mediated by magnetic fluctuations. It is an open question how magnetic order can emerge from a superconducting condensate and how it competes with the magnetic spin resonance in unconventional superconductors. Here we study a model d-wave superconductor that develops spin-density wave order, and find that the spin resonance is unaffected by the onset of static magnetic order. This result suggests a scenario, in which the resonance in Nd0.05Ce0.95CoIn5 is a longitudinal mode with fluctuating moments along the ordered magnetic moments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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