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- 2017
Zeeman磁场对有节点非常规超导体节点结构的影响
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Abstract:
摘要 在大部分非常规超导体中，准粒子激发谱中存在着“线节点”或“点节点”。 这些节点的存在，导致热力学量和输运系数在低温区的温度变化呈现幂次律。解析分析表明，外加的弱Zeeman磁场会显著影响节点的结构。 尤其是，预言在某些情况下Zeeman磁场可能在费米面上诱导出“面节点”。计算若干自旋单态和自旋三重态的电子比热，结果显示外加的弱Zeeman磁场对节点结构的影响会导致幂次律产生巨大变化。
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