讨论会:重费米子金属CeCu2Si2的非常规全间隙超导性

IF 45.9 1区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Reviews of Modern Physics Pub Date : 2023-09-15 DOI:10.1103/revmodphys.95.031002

Michael Smidman, Oliver Stockert, Emilian M. Nica, Yang Liu, Huiqiu Yuan, Qimiao Si, Frank Steglich

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引用次数: 1

摘要

重费米子化合物CeCu${}_{2}$Si${}_{2}$早就被认为是具有$d$波对称性的非常规超导体。通常，这意味着间隙函数在费米曲面上有节点。这次研讨会解释说，最近的实验表明，这个间隙在任何地方都是非零的，如果小的话，单波段的波间隙就会消失。讨论会讨论了解释这些观察结果的理论情景，以及对其他非常规超导体的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Colloquium : Unconventional fully gapped superconductivity in the heavy-fermion metal CeCu2Si2

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Colloquium : Unconventional fully gapped superconductivity in the heavy-fermion metal CeCu2Si2

The heavy-fermion compound CeCu${}_{2}$Si${}_{2}$ has long been known to be an unconventional superconductor with $d$-wave symmetry. Ordinarily, this would imply that the gap function has nodes on the Fermi surface. This Colloquium explains that recent experiments have shown that the gap is nonzero everywhere, if small where a single-band wave gap would vanish. The Colloquium discusses theoretical scenarios to explain these observations, as well as the implications for other unconventional superconductors.

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来源期刊

Reviews of Modern Physics 物理-物理：综合

CiteScore

76.20

自引率

0.70%

发文量

期刊介绍： Reviews of Modern Physics (RMP) stands as the world's foremost physics review journal and is the most extensively cited publication within the Physical Review collection. Authored by leading international researchers, RMP's comprehensive essays offer exceptional coverage of a topic, providing context and background for contemporary research trends. Since 1929, RMP has served as an unparalleled platform for authoritative review papers across all physics domains. The journal publishes two types of essays: Reviews and Colloquia. Review articles deliver the present state of a given topic, including historical context, a critical synthesis of research progress, and a summary of potential future developments.