Nodeless superconductivity in cuprates with Ba2CuO3-type structure

被引:0
|
作者
Gao, Zhi-Qiang [1 ]
Sun, Kai-Wei [1 ]
Wang, Fa [1 ,2 ]
机构
[1] Peking Univ, Int Ctr Quantum Mat, Sch Phys, Beijing 100871, Peoples R China
[2] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China
来源
EUROPEAN PHYSICAL JOURNAL B | 2021年 / 94卷 / 12期
基金
中国国家自然科学基金;
关键词
SYMMETRY;
D O I
10.1140/epjb/s10051-021-00244-2
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
In this work, zero-temperature phase diagrams of cuprates with Ba2CuO3-type CuO chain structure are investigated. The projective symmetry group analysis is employed in the strong coupling limit, and the one-loop renormalization group with bosonization analysis is employed in the weak coupling limit. We find that in both of these two limits, large areas of the phase diagrams are filled with nodeless superconducting phases, instead of nodal d-wave phase mostly found in cuprates. This implies that nodeless superconducting phases are the dominant superconducting phases in cuprates with Ba2CuO3-type CuO chain structure in low temperature. Other phases are also found, including nodal superconducting phases and Luttinger liquid phases.
引用
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页数:14
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