期刊
EUROPEAN PHYSICAL JOURNAL B
卷 94, 期 12, 页码 -出版社
SPRINGER
DOI: 10.1140/epjb/s10051-021-00244-2
关键词
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资金
- National Key Research and Development Program of China [2017YFA0302904]
- National Natural Science Foundation of China [11888101]
The research found that in cuprates with Ba2CuO3-type CuO chain structure, nodeless superconducting phases dominate over nodal d-wave phases, with other phases such as nodal superconducting phases and Luttinger liquid phases also being present.
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.
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