Exact insulating and conducting ground states of a periodic anderson model in three dimensions

Zsolt Gulácsi, Dieter Vollhardt

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

We present a class of exact ground states of a three-dimensional periodic Anderson model at [Formula presented] filling. Hopping and hybridization of [Formula presented] and [Formula presented] electrons extend over the unit cell of a general Bravais lattice. Employing novel composite operators combined with 55 matching conditions the Hamiltonian is cast into positive semidefinite form. A product wave function in position space allows one to identify stability regions of an insulating and a conducting ground state. The metallic phase is a non-Fermi liquid with one dispersing and one flat band.

Original languageEnglish
JournalPhysical review letters
Volume91
Issue number18
DOIs
Publication statusPublished - Jan 1 2003

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Exact insulating and conducting ground states of a periodic anderson model in three dimensions'. Together they form a unique fingerprint.

  • Cite this