We explore the superconducting pairing mechanisms in the trilayer $\mathrm{La}_4\mathrm{Ni}_3\mathrm{O}_{10}$ material through self-consistent mean-field calculations. Our findings demonstrate that intralayer pairings are substantially weaker compared to interlayer ones. Remarkably, in the state characterized by interlayer pairing, we detect the presence of partially gapped Fermi surfaces, a fascinating occurrence attributable to the disparity between the inner and outer conducting layers of $\mathrm{La}_4\mathrm{Ni}_3\mathrm{O}_{10}$. Moreover, this study provides valuable insights into the lower superconducting transition temperatures observed in $\mathrm{La}_4\mathrm{Ni}_3\mathrm{O}_{10}$ compounds. This contributes to a deeper understanding of its distinct superconducting attributes.
Superconducting and normal-state interlayer-exchange-coupling in La$_{0.67}$Sr$_{0.33}$MnO${3}$-YBa$_{2}$Cu$_{3}$O$_{7}-La$_{0.67}$Sr$_{0.33}$ MnO${3}$ epitaxial trilayers
Electronic Origin of Density Wave Orders in a Trilayer Nickelate
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences(中国科学院物理研究所凝聚态物理国家实验室);School of Physical Sciences, University of Chinese Academy of Sciences(中国科学院大学物理科学学院);Guangdong Provincial Key Laboratory of Magnetoelectric Physics and Devices, School of Physics, Sun Yat-Sen University(中山大学物理学院广东省磁电物理与器件重点实验室);Technical Institute of Physics and Chemistry, Chinese Academy of Sciences(中国科学院化学物理研究所);Institute of Theoretical Physics, Chinese Academy of Sciences(中国科学院理论物理研究所)
Dissecting superconductivity in the Ruddlesden-Popper nickelates: The role of electron correlation and interlayer magnetic exchange
Diamond Light Source(钻石光源);National Synchrotron Radiation Laboratory and School of Nuclear Science and Technology, University of Science and Technology of China(中国科学技术大学核科学与技术学院/国家同步辐射实验室);Guangdong Provincial Key Laboratory of Magnetoelectric Physics and Devices, School of Physics, Sun Yat-Sen University(中山大学物理学院/广东省铁电与磁器件重点实验室);Department of Physics, University of Oxford(牛津大学物理系);National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University(南京大学固体微结构物理国家重点实验室/物理学院);Collaborative Innovation Center of Advanced Microstructures, Nanjing University(南京大学先进微结构协同创新中心)