Metal-insulator transition in the double perovskites

A. A. Aligia, P. Petrone, J. O. Sofo, B. Alascio

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

We construct an effective Hamiltonian for the motion of electrons among the transition-metal ions of ordered double perovskites like Sr2FeMoO6, in which strong intra-atomic Coulomb repulsion U is present in only one of the inequivalent transition metal sites. Using a slave-boson formalism, we construct a phase diagram that describes a charge-transfer transition between insulating and metallic behavior as the parameters of the model are changed. The parameters for Sr2FeMoO6 are estimated from first-principles calculations and a transition to the insulating state with negative pressure is obtained.

Original languageEnglish (US)
Article number092414
Pages (from-to)924141-924144
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume64
Issue number9
DOIs
StatePublished - Sep 1 2001

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Metal insulator transition
perovskites
Transition metals
transition metals
insulators
Hamiltonians
Bosons
metals
Phase diagrams
Metal ions
Charge transfer
metal ions
bosons
charge transfer
phase diagrams
formalism
Electrons
electrons

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Aligia, A. A. ; Petrone, P. ; Sofo, J. O. ; Alascio, B. / Metal-insulator transition in the double perovskites. In: Physical Review B - Condensed Matter and Materials Physics. 2001 ; Vol. 64, No. 9. pp. 924141-924144.
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Metal-insulator transition in the double perovskites. / Aligia, A. A.; Petrone, P.; Sofo, J. O.; Alascio, B.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 64, No. 9, 092414, 01.09.2001, p. 924141-924144.

Research output: Contribution to journalArticle

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