Understanding superconductivity in its myriad forms arising in numerous different crystal architectures is one of the major quests of modern condensed matter physics. One promising avenue to gain local information about novel superconductors is the use of local probes to measure properties inside the unit cell. The application of muon spin spectroscopy to the study of various superconducting materials is reviewed. These experiments can be carried out as a function of temperature, magnetic field, and pressure and even in thin-film samples. They provide information about proximal magnetic phases and the nature of the superconducting state, as well as giving intriguing evidence of time-reversal symmetry breaking. To properly interpret the experimental results, it is necessary to have reliable information about the site of the implanted muon, as well as its stability. This can now be provided using density functional theory techniques.

中文翻译：

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超导体的 μ 子研究


了解在众多不同晶体结构中出现的无数形式的超导性是现代凝聚态物理学的主要追求之一。获取有关新型超导体的本地信息的一种有前途的途径是使用本地探针来测量晶胞内部的特性。综述了 μ 子自旋光谱在各种超导材料研究中的应用。这些实验可以作为温度、磁场和压力的函数进行，甚至可以在薄膜样品中进行。它们提供了有关近端磁相和超导态性质的信息，并提供了时间反转对称性打破的有趣证据。为了正确解释实验结果，有必要获得有关植入 μ 子位置及其稳定性的可靠信息。这现在可以使用密度泛函理论技术来提供。