Quantum-critical, spin-fluctuation-driven residual resistivity and emergent universal correlations in the Fermi-liquid regime of heavy-fermion superconductors
Abstract
Abstract We investigate correlations within the unconventional Fermi-liquid (FL) regime of quantum-critical (QC) heavy-fermion (HF) superconductors by tracking the pressure dependence of three quantities: the temperature-independent, spin-fluctuation-driven residual resistivity, ρ 0 sf ( P ) ; the FL scattering coefficient, A ( P ); and the superconducting transition temperature, T c ( P ) . The first two define the spin-fluctuation contribution to the resistivity, ρ ( T ) = ρ 0 sf + A T 2 . Using experimental data from archetypal HF systems, we identify three robust empirical correlations: ln ( T c / θ ) ∝ A − 1 / 2 , A ∝ ( ρ 0 sf ) 2 , and ln (
Fields of Study & Subjects
Rare-earth and actinide compounds
Physics of Superconductivity and Magnetism
Iron-based superconductors research
Publication details
- Journal / source
- Superconductor Science and Technology
- Publisher
- IOP Publishing
- Volume
- 39
- Issue
- 5
- Pages
- 055025–055025
- Publication date
- 1 May 2026
- Language
- EN