关键词: 铁基超导体/
高压/
量子相变/
磁有序
English Abstract
Pressure-induced phenomena and physics in iron-based superconductors
Guo Jing1,Wu Qi1,
Sun Li-Ling1,2
1.Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
2.University of Chinese Academy of Sciences, Beijing 100049, China
Fund Project:Project supported by the Strategic Priority Research Program(B) of the Chinese Academy of Sciences (Grant No. XDB25000000), the National High Technology Research and Development Program of China (Grant Nos. 2017YFA0302900, 2016YFA0300300, 2017YFA0303103), and the National Natural Science Foundation of China (Grant Nos. 11427805, U1532267, 11604376).Received Date:04 September 2018
Accepted Date:27 September 2018
Published Online:20 October 2019
Abstract:The discovery of Fe-based superconductor in 2018 opened an illustrious chapter in the history of high temperature superconductors. Over the past ten years, many progresses on experiments, theories and applications have been achieved in the studies of Fe-based superconductors, which have greatly enriched the basic knowledge on the superconductivity of high temperature (Tc) superconductors and laid a solid foundation for uncovering superconducting mechanism of high-Tc superconductors and expanding their applications. In this review article, we present some important progresses and new phenomena/physics exhibited in the pressurized Fe-based superconductors, including pressure-induced superconductivity, pressure-induced reemergence of superconductivity, pressure-enhanced superconducting temperature, the prediction on the highest superconducting temperature for Fe-based superconductors via high pressure studies, the effect of the separated phase structure on the superconductivity and the discovery of a bi-critical point between antiferromagnetic and superconducting phases. It is expected that these high pressure experimental results on Fe-based superconductors, together with the results reported in the same issue through other experimental and theoretical methods, can aid to outline a more complete physical picture for a more comprehensive and deeper understanding on Fe-based superconductors.
Keywords: Fe-based superconductors/
high pressure/
quantum critical transition/
antiferromagnetic phase
