3 papers
cond-mat.mtrl-sci2026
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,…
cond-mat.mtrl-sci2026
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…
cond-mat.str-el2026
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…