Interlayer pairing-induced partially gapped Fermi surface in trilayer La4Ni3O10 superconductors

Junkang Huang; Tao Zhou

doi:10.1103/PhysRevB.110.L060506

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Interlayer pairing-induced partially gapped Fermi surface in trilayer La4Ni3O10 superconductors

Junkang Huang, Tao Zhou

DOI 10.1103/PhysRevB.110.L060506 · Physical Review B

T1

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Abstract

We explore the superconducting pairing mechanism in the trilayer La4Ni3O10 material through self-consistent mean-field calculations. Our findings demonstrate that the intralayer pairing is substantially weaker compared to the interlayer one. Remarkably, in the superconducting state characterized by the interlayer pairing, our results indicate the presence of a partially gapped Fermi surface, a fascinating occurrence attributable to the inequivalence between the inner and outer conducting layers of La4Ni3O10. Moreover, this Letter provides valuable insights into the lower superconducting transition temperature observed in the La4Ni3O10 compound, thereby deepening our understanding of its distinctive superconducting properties.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
La3Ni2O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	80	Pressure not reported	unknown
La4Ni3O10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	20	Pressure not reported	unknown
La4Ni3O10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	30	Pressure not reported	unknown