Colloquium: Unconventional fully gapped superconductivity in the heavy-fermion metal
The heavy-fermion metal CeCu 2 Si 2 was the first discovered unconventional, non-phonon-
mediated superconductor and, for a long time, was believed to exhibit single-band d-wave …
mediated superconductor and, for a long time, was believed to exhibit single-band d-wave …
Linear and nonlinear current response in disordered -wave superconductors
We present a detailed theoretical investigation of the linear and nonlinear optical response
in a model system for a disordered d-wave superconductor. By evaluating the quasiparticle …
in a model system for a disordered d-wave superconductor. By evaluating the quasiparticle …
Fully gapped d-wave superconductivity in CeCu2Si2
The nature of the pairing symmetry of the first heavy fermion superconductor CeCu2Si2 has
recently become the subject of controversy. While CeCu2Si2 was generally believed to be …
recently become the subject of controversy. While CeCu2Si2 was generally believed to be …
Interplay between unconventional superconductivity and heavy-fermion quantum criticality: CeCu2Si2 versus YbRh2Si2
In this paper the low-temperature properties of two isostructural canonical heavy-fermion
compounds are contrasted with regards to the interplay between antiferromagnetic (AF) …
compounds are contrasted with regards to the interplay between antiferromagnetic (AF) …
Interaction-driven first-order and higher-order topological superconductivity
We investigate topological superconductivity in the Rashba-Hubbard model, describing
heavy-atom superlattice and van der Waals materials with broken inversion. We focus in …
heavy-atom superlattice and van der Waals materials with broken inversion. We focus in …
Charge modulation in the background of depleted superconductivity inside vortices
We use the Bogoliubov-de Gennes (BDG) formalism to undertake a microscopic
investigation of a vortex lattice in a strongly correlated, type-II, d-wave superconductor (SC) …
investigation of a vortex lattice in a strongly correlated, type-II, d-wave superconductor (SC) …
Origin of the pseudogap end point in high- cuprate superconductors
J Yang, T Li - Physical Review B, 2024 - APS
There are two seemingly unrelated puzzles about the cuprate superconductors. The first
puzzle concerns the strong non-BCS behavior around xc, the end point of the …
puzzle concerns the strong non-BCS behavior around xc, the end point of the …
Pinning of vortices by impurities in unconventional superconductors
We carry out a microscopic study of a vortex lattice in a strongly correlated, type-II, d-wave
superconductor (SC) using Bogoliubov-de Gennes (BDG) formalism. In weak-coupling …
superconductor (SC) using Bogoliubov-de Gennes (BDG) formalism. In weak-coupling …
A tale of two pairs: on the origin of the pseudogap end point in the high-T cuprate superconductors
J Yang, T Li - arxiv preprint arxiv:2402.02785, 2024 - arxiv.org
There are two seemingly unrelated puzzles about the cuprate superconductors. The first
puzzle concerns the strong non-BCS behavior around $ x_ {c} $, the end point of the …
puzzle concerns the strong non-BCS behavior around $ x_ {c} $, the end point of the …