Theoretical study of the double perovskite Sr2 FeMO6(M = Mo, W)

O. Navarro; B. Aguilar; E. Carvajal; M. Avignon

doi:10.1016/j.jmmm.2007.02.202

Theoretical study of the double perovskite Sr₂ FeMO₆(M = Mo, W)

O. Navarro, B. Aguilar, E. Carvajal, M. Avignon

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

We study the double perovskite Sr₂ FeMO₆ using a tight-binding model with the renormalized perturbation expansion technique. An analysis of the antiferromagnetic (AF) phase shows that the electronic energy remains larger than in the ferromagnetic (F) state but the difference decreases with increasing charge transfer energy. Therefore, with increasing Fe-M charge transfer energy, the transition to the AF state can be easily driven by the superexchange interaction. The F-AF transition in the system Sr₂ FeMo_x W_{1 - x} O₆ vs. doping is also presented.

Original language	English
Pages (from-to)	e496-e498
Journal	Journal of Magnetism and Magnetic Materials
Volume	316
Issue number	2 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.jmmm.2007.02.202
State	Published - Sep 2007
Externally published	Yes

Keywords

Magnetoresistance
Metal-insulator transition
Ordered double perovskites

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10.1016/j.jmmm.2007.02.202

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title = "Theoretical study of the double perovskite Sr2 FeMO6(M = Mo, W)",

abstract = "We study the double perovskite Sr2 FeMO6 using a tight-binding model with the renormalized perturbation expansion technique. An analysis of the antiferromagnetic (AF) phase shows that the electronic energy remains larger than in the ferromagnetic (F) state but the difference decreases with increasing charge transfer energy. Therefore, with increasing Fe-M charge transfer energy, the transition to the AF state can be easily driven by the superexchange interaction. The F-AF transition in the system Sr2 FeMox W1 - x O6 vs. doping is also presented.",

keywords = "Magnetoresistance, Metal-insulator transition, Ordered double perovskites",

author = "O. Navarro and B. Aguilar and E. Carvajal and M. Avignon",

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TY - JOUR

T1 - Theoretical study of the double perovskite Sr2 FeMO6(M = Mo, W)

AU - Navarro, O.

AU - Aguilar, B.

AU - Carvajal, E.

AU - Avignon, M.

PY - 2007/9

Y1 - 2007/9

N2 - We study the double perovskite Sr2 FeMO6 using a tight-binding model with the renormalized perturbation expansion technique. An analysis of the antiferromagnetic (AF) phase shows that the electronic energy remains larger than in the ferromagnetic (F) state but the difference decreases with increasing charge transfer energy. Therefore, with increasing Fe-M charge transfer energy, the transition to the AF state can be easily driven by the superexchange interaction. The F-AF transition in the system Sr2 FeMox W1 - x O6 vs. doping is also presented.

AB - We study the double perovskite Sr2 FeMO6 using a tight-binding model with the renormalized perturbation expansion technique. An analysis of the antiferromagnetic (AF) phase shows that the electronic energy remains larger than in the ferromagnetic (F) state but the difference decreases with increasing charge transfer energy. Therefore, with increasing Fe-M charge transfer energy, the transition to the AF state can be easily driven by the superexchange interaction. The F-AF transition in the system Sr2 FeMox W1 - x O6 vs. doping is also presented.

KW - Magnetoresistance

KW - Metal-insulator transition

KW - Ordered double perovskites

UR - http://www.scopus.com/inward/record.url?scp=34250308761&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2007.02.202

DO - 10.1016/j.jmmm.2007.02.202

M3 - Artículo

SN - 0304-8853

VL - 316

SP - e496-e498

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 2 SPEC. ISS.

ER -

Theoretical study of the double perovskite Sr₂ FeMO₆(M = Mo, W)

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Keywords

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