4 papers
Ni-O hybridization as a stabilizer for superconductivity in LaNiO: a DFT+RPA study
Lauro B. Braz, Daniel D. Rivera, Emmanuel V. C. Lopes +3
The superconducting gap symmetry of high-pressure bilayer nickelates remains under debate, with weak- and strong-coupling approaches yielding different pairing tendencies. In this…
Alloy engineering of Magnetic phases in two-dimensional Chromium Trihalides
Pedro Roberto Lopes Vieira, Daniel D. Rivera, Lucas Martin Farigliano +2
Two-dimensional magnetic materials offer unique opportunities for exploring low-dimensional spin phenomena and next-generation spintronic devices. Chromium trihalides CrX3 (X = Cl,…
Elusive Exciton Insulator States in 1T-HfTe2: Exciton softening, and Symmetry Breaking by Ab Initio Methods
Hong Tang, Niraj Pangeni, Daniel D. Rivera +1
Recent experiments have provided evidence for excitonic insulator (EI) states in 1T HfTe2. In this work, we investigate EI states in monolayer, bilayer, trilayer, and bulk 1T HfTe2…
Identifying strong correlation using only the Kohn-Sham density of one-electron states
Daniel D. Rivera, Gustavo M. Dalpian, John P. Perdew
Strongly correlated systems have long been a central and highly non-trivial topic in condensed matter physics. At the non-interacting level, strong correlation can be associated wi…