Probing the pairing symmetry in kagome superconductors based on the single-particle spectrum

Jinhui Liu; Tao Zhou

doi:10.1103/PhysRevB.109.054504

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Probing the pairing symmetry in kagome superconductors based on the single-particle spectrum

Jinhui Liu, Tao Zhou

DOI 10.1103/PhysRevB.109.054504 · Physical Review B

T1

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Abstract

We investigate the single-particle spectra of recently discovered kagome superconductors. We examine nine distinct superconducting pairing symmetries, including the uniform s-wave pairing function, nearest-neighbor and next-nearest-neighbor s-wave pairing, p+ip pairing, d+id pairing, and f-wave pairing states. These pairing states can be classified into irreducible representations of the C6v point group. Our findings suggest that these pairing states can be differentiated by analyzing the energy bands, spectral function, and local density of states. Additionally, we explore the single impurity effect, which could potentially assist in further distinguishing these pairing symmetries.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Mg2Ir3Si Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Ta2V3.1Si0.9 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
CsCr3Sb5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown