Discovery of Magnetic Phase Transitions in Heavy-Fermion Superconductor

G Chajewski, D Kaczorowski - Physical Review Letters, 2024 - APS
We report on the specific heat studies performed on a new generation of CeRh 2 As 2 single
crystals. Superior quality of the samples and dedicated experimental protocol allowed us to …

Coexistence of near- Flat Band and Van Hove Singularity in a Two-Phase Superconductor

X Chen, L Wang, J Ishizuka, R Zhang, K Nogaki… - Physical Review X, 2024 - APS
Quantum many-body systems, particularly, the ones with large near-EF density states, are
well known for exhibiting rich phase diagrams as a result of enhanced electron correlations …

Violation of Pauli-Clogston limit in the heavy-fermion superconductor : Duality of itinerant and localized electrons

K Machida - Physical Review B, 2022 - APS
We theoretically propose a mechanism to understand the violation of the Pauli-Clogston limit
for the upper critical field H c 2 observed in the Ce bearing heavy Fermion material CeRh 2 …

Spectroscopic Evidence of Kondo-Induced Quasiquartet in

DS Christovam, M Ferreira-Carvalho, A Marino… - Physical review …, 2024 - APS
CeRh 2 As 2 is a new multiphase superconductor with strong suggestions for an additional
itinerant multipolar ordered phase. The modeling of the low-temperature properties of this …

Evidence for vertical line nodes in from nonlocal electrodynamics

JF Landaeta, K Semeniuk, J Aretz, KR Shirer… - Physical Review B, 2024 - APS
By determining the superconducting lower and upper critical fields H c 1 (T) and H c 2 (T),
respectively, in a high-purity spherical Sr 2 RuO 4 sample via ac-susceptibility …

Quasi-Two-Dimensional Fermi Surface and Heavy Quasiparticles in CeRh2As2

Y Wu, Y Zhang, S Ju, Y Hu, G Yang, H Zheng… - arXiv preprint arXiv …, 2023 - arxiv.org
The recent discovery of multiple superconducting phases in CeRh2As2 has attracted
considerable interest. These rich phases are thought to be related to the locally …

Broken time-reversal symmetry in a new non-centrosymmetric superconductor Re8NbTa

RK Kushwaha, S Sharma, S Srivastava… - arXiv preprint arXiv …, 2024 - arxiv.org
Re-based superconductors provide a rich platform for the study of unconventional
superconductivity. We have investigated the superconducting properties of Re $ _ {8} …

Exposing the odd-parity superconductivity in CeRhAs with hydrostatic pressure

M Pfeiffer, K Semeniuk, JF Landaeta, M Nicklas… - arXiv preprint arXiv …, 2023 - arxiv.org
Odd-parity superconductivity is a rare and sought-for state of matter with a potential for
applications in topological quantum computing. Crystals with staggered locally non …