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12 papers · 2 filters
Flat bands, strange metals, and the Kondo effect
Joseph G. Checkelsky, B. Andrei Bernevig, Piers Coleman +2
Flat band materials such as the kagome metals or moiré superlattice systems are of intense current interest. Flat bands can result from the electron motion on numerous (special) la…
Moiré Fractional Chern Insulators III: Hartree-Fock Phase Diagram, Magic Angle Regime for Chern Insulator States, the Role of the Moiré Potential and Goldstone Gaps in Rhombohedral Graphene Superlattices
Yves H. Kwan, Jiabin Yu, Jonah Herzog-Arbeitman +3
We investigate in detail the displacement-field-tuned interacting phase diagram of layer rhombohedral graphene aligned to hBN (RG/hBN). Our calculations acc…
What can lattice DFT teach us about real-space DFT?
Nahual Sobrino, David Jacob, Stefan Kurth
In this paper we establish a connection between density functional theory (DFT) for lattice models and common real-space DFT. We consider the lattice DFT description of a two-level…
Temperature evolution of the Kondo peak beyond Fermi liquid theory
David Jacob
The limitation of Fermi liquid theory to very low energies and temperatures poses a fundamental problem for describing the temperature evolution of the Kondo peak. Here Fermi liqui…
Topological heavy fermions in magnetic field
Keshav Singh, Aaron Chew, Jonah Herzog-Arbeitman +2
The recently introduced topological heavy fermion model (THFM) provides a means for interpreting the low-energy electronic degrees of freedom of the magic angle twisted bilayer gra…
Moment canting and domain effects in antiferromagnetic DyRhSi
Kristin Kliemt, Michelle Ocker, Sarah Krebber +4
A combined experimental and theoretical study of the layered antiferromagnetic compound DyRhSi in the ThCrSi-type structure is presented. The heat capacity shows tw…