New phase in Kondo lattices

A. Pérez-Navarro, J. Costa-Quintana, F. López-Aguilar

Research output: Contribution to journalArticleResearchpeer-review

Abstract

An approximated diagonalization of the Kondo lattice Hamiltonian is obtained considering an ansatz based on strongly correlated many body states which are combinations of charged fermionic excitations coupled to a kind of spin wave. For determined values of the density of states of the non-interacting system and Kondo Hamiltonian parameter, there is an interval of the J parameter in which a new and interesting ground state appears. © 1999 Elsevier Science B. V. All rights reserved.
Original languageEnglish
Pages (from-to)202-203
JournalPhysica B: Condensed Matter
Volume259-261
DOIs
Publication statusPublished - 1 Jan 1999

Keywords

  • Heavy fermions
  • Kondo lattice
  • Superconductivity

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