19 papers
Quantum Geometric Origin of the Intrinsic Nonlinear Hall Effect
Yannis Ulrich, Johannes Mitscherling, Laura Classen +1
We decompose the intrinsic second-order nonlinear Hall effect (NLHE) of a generic multiband system into its quantum-geometric contributions within a fully quantum-mechanical, proje…
Robust realization of spin-polarized specular Andreev reflection in VO-based altermagnets
Yutaro Nagae, Andreas P. Schnyder, Satoshi Ikegaya
We theoretically investigate charge transport in a junction between a conventional superconductor and a VO-based altermagnet exhibiting distinctive spin-split quasi-one-dimensi…
Raman response in superconducting multiorbital systems with application to nickelates
MatÃas Bejas, Jun Zhan, Xianxin Wu +2
The recent discovery of high- superconductivity in pressurized and thin film nickelates is nowadays one of the most relevant and active topics in solid-state physics. The orig…
Detecting pairing symmetry of bilayer nickelates using electronic Raman scattering
Jun Zhan, MatÃas Bejas, Andreas P. Schnyder +3
The recent discovery of high-temperature superconductivity in both bulk and thin-film bilayer nickelates LaNiO has garnered significant attention. However, the correspo…
Suppression of Spectral Gap and Flat Bands on a Cuprate Superconductor Side-Surface
Gabriele Domaine, Mihir Date, Sydney K. Y. Dufresne +27
Side surfaces of cuprate superconductors are expected to display a suppressed -wave order parameter and zero-energy topological flat bands with a large density of states, making…
Comparative Raman study of Ruddlesden-Popper nickelates and the monolayer-trilayer polymorph
Vignesh Sundaramurthy, Abhi Suthar, Pascal Puphal +12
Ruddlesden-Popper (RP) nickelates have attracted intense interest following the discovery of superconductivity in several members of the series, including bilayer (BL) LaNi…