Colloquium: Unconventional fully gapped superconductivity in the heavy-fermion metal

M Smidman, O Stockert, EM Nica, Y Liu, H Yuan… - Reviews of Modern …, 2023 - APS
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 …

Linear and nonlinear current response in disordered -wave superconductors

L Benfatto, C Castellani, G Seibold - Physical Review B, 2023 - APS
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 …

Fully gapped d-wave superconductivity in CeCu2Si2

G Pang, M Smidman, J Zhang, L Jiao… - Proceedings of the …, 2018 - National Acad Sciences
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 …

Interplay between unconventional superconductivity and heavy-fermion quantum criticality: CeCu2Si2 versus YbRh2Si2

M Smidman, O Stockert, J Arndt, GM Pang… - Philosophical …, 2018 - Taylor & Francis
In this paper the low-temperature properties of two isostructural canonical heavy-fermion
compounds are contrasted with regards to the interplay between antiferromagnetic (AF) …

Interaction-driven first-order and higher-order topological superconductivity

PM Bonetti, D Chakraborty, X Wu, AP Schnyder - Physical Review B, 2024 - APS
We investigate topological superconductivity in the Rashba-Hubbard model, describing
heavy-atom superlattice and van der Waals materials with broken inversion. We focus in …

Charge modulation in the background of depleted superconductivity inside vortices

C Mahato, A Banerjee, C Pépin, A Ghosal - arxiv preprint arxiv …, 2024 - arxiv.org
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) …

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 …

Pinning of vortices by impurities in unconventional superconductors

C Mahato, K Yang, A Ghosal - Physical Review B, 2024 - APS
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 …

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 …