On the bonding nature of electron states for the Fe-Mo double perovskite

E. Carvajal, R. Oviedo-Roa, M. Cruz-Irisson, O. Navarro

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The electronic transport as well as the effect of an external magnetic field has been investigated on manganese-based materials, spinels and perovskites. Potential applications of double perovskites go from magnetic sensors to electrodes in solid-oxide fuel cells; besides the practical interests, it is known that small changes in composition modify radically the physical properties of double perovskites. We have studied the Sr2FeMoO6 double perovskite compound (SFMO) using first-principles density functional theory. The calculations were done within the generalized gradient approximation (GGA) scheme with the Perdew-Burke-Ernzerhof (PBE) functional. We have made a detailed analysis of each electronic state and the charge density maps around the Fermi level. For the electronic properties of SFMO it was used a primitive cell, for which we found the characteristic half-metallic behavior density of states composed by eg and t2g electrons from Fe and Mo atoms. Those peaks were tagged as bonding or antibonding around the Fermi level at both, valence and conduction bands.

Original languageEnglish
Title of host publication7th International Conference on Low Dimensional Structures and Devices, LDSD 2011
PublisherAmerican Institute of Physics Inc.
Pages18-21
Number of pages4
ISBN (Print)9780735412323
DOIs
StatePublished - 2014
Event7th International Conference on Low Dimensional Structures and Devices, LDSD 2011 - Telchac, Mexico
Duration: 22 May 201127 May 2011

Publication series

NameAIP Conference Proceedings
Volume1598
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference7th International Conference on Low Dimensional Structures and Devices, LDSD 2011
Country/TerritoryMexico
CityTelchac
Period22/05/1127/05/11

Keywords

  • Colossal magnetoresistance
  • Double perovskites
  • Ferromagnetism

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