82 citations · 568 across the 39 of their papers we have counts for
18 papers · 1 filter
Raman response in superconducting multiorbital systems with application to nickelates
Matías 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, Matías 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…
Out-of-plane bond-order phase, superconductivity, and their competition in the -- model: Possible implications for bilayer nickelates
Matías Bejas, Xianxin Wu, Debmalya Chakraborty +2
Almost four decades of intense research have been invested to study the physics of high-T cuprate superconductors. The recent discovery of high-T superconductivity in press…
Plasmon dispersion in bilayer cuprate superconductors
M. Bejas, V. Zimmermann, D. Betto +11
The essential building blocks of cuprate superconductors are two-dimensional CuO sheets interspersed with charge reservoir layers. In bilayer cuprates, two closely spaced CuO$_…
Evolution of plasmon excitations across the phase diagram of the cuprate superconductor LaSrCuO
M. Hepting, T. D. Boyko, V. Zimmermann +19
We use resonant inelastic x-ray scattering (RIXS) at the O - and Cu -edges to investigate the doping- and temperature dependence of low-energy plasmon excitations in La$_{2-x…
Plasmarons in high-temperature cuprate superconductors
Hiroyuki Yamase, Matias Bejas, Andres Greco
Metallic systems exhibit plasmons as elementary charge excitations. This fundamental concept was reinforced also in high-temperature cuprate superconductors recently, although cupr…