Paramagnetic contribution in superconductors with different-mass Cooper pairs
Pengfei Li, Kun Jiang, Jiangping Hu
DOI 10.1103/PhysRevB.110.094517 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Cooper pairs formed by two electrons with different effective masses are common in multiband superconductors, pair density wave states, and other superconducting systems with multiple degrees of freedom. In this paper, we show that there are paramagnetic contributions to the superfluid stiffness in superconductors with different-mass Cooper pairs. This paramagnetic response is owing to the relative motion between two electrons with different mass. Additionally, we identify a particle-hole dichotomy effect related to this mass difference. We investigate the paramagnetic contributions based on the linear-response theory in two-band superconductors with interband pairings and in pair density wave states, respectively. Our results offer a different perspective of the electromagnetic superfluid stiffness in unconventional superconductors beyond the traditional BCS response.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| FeSe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Antiferromagnetism enables electron-phonon coupling in iron-based superconductors
similarity 0.94Sinisa Coh et al.
Source status unknown — claims are unverified
Rise and fall of shape resonances in thin films of BCS superconductors
similarity 0.94D. Valentinis et al.
Source status unknown — claims are unverified
Inverse proximity effect in s-wave and d-wave superconductors coupled to topological insulators
similarity 0.93Henning G. Hugdal et al.
Source status unknown — claims are unverified
Theoretical study of phonon-mediated superconductivity beyond Migdal-Eliashberg approximation and Coulomb pseudopotential
similarity 0.91Jie Huang et al.
Source status unknown — claims are unverified
Crossover of superconductivity across the antiferromagnetic end point in FeSe1−xSx under pressure
similarity 0.91Kiyotaka Miyoshi et al.
Source status unknown — claims are unverified
Spectral properties and enhanced superconductivity in renormalized Migdal-Eliashberg theory
similarity 0.91Benjamin Nosarzewski et al.
Source status unknown — claims are unverified