超导电性
配对
凝聚态物理
量子
原子轨道
领域(数学)
宏观量子现象
理论物理学
物理
量子力学
电子
数学
纯数学
作者
Rafael M. Fernandes,A. I. Coldea,Hong Ding,I. R. Fisher,P. J. Hirschfeld,Gabriel Kotliar
出处
期刊:Nature
[Springer Nature]
日期:2022-01-05
卷期号:601 (7891): 35-44
被引量:65
标识
DOI:10.1038/s41586-021-04073-2
摘要
Superconductivity is a remarkably widespread phenomenon observed in most metals cooled down to very low temperatures. The ubiquity of such conventional superconductors, and the wide range of associated critical temperatures, is readily understood in terms of the celebrated Bardeen-Cooper-Schrieffer (BCS) theory. Occasionally, however, unconventional superconductors are found, such as the iron-based materials, which extend and defy this understanding in new and unexpected ways. In the case of the iron-based superconductors, this includes a new appreciation of the ways in which the presence of multiple atomic orbitals can manifest in unconventional superconductivity, giving rise to a rich landscape of gap structures that share the same dominant pairing mechanism. Besides superconductivity, these materials have also led to new insights into the unusual metallic state governed by the Hund's interaction, the control and mechanisms of electronic nematicity, the impact of magnetic fluctuations and quantum criticality, and the significance of topology in correlated states. Over the thirteen years since their discovery, they have proven to be an incredibly fruitful testing ground for the development of new experimental tools and theoretical approaches, both of which have extensively influenced the wider field of quantum materials.
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