Charge imbalance and magnetic properties at the Fe3O 4/BaTiO3 interface

Min Sik Park, Jung Hwan Song, Arthur J Freeman

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The electronic structure and physical properties at the interface in the superlattice Fe3 O4 / BaTiO3 were investigated by using the first-principles all-electron full-potential linearized augmented plane-wave method. The loss of half metallicity of bulk Fe3 O4 in the multiferroic superlattice Fe3 O4 / BaTiO3 is related to the charge imbalance effect at the interface. The effect of strain strongly influences the Fe magnetic moments and the spin-polarized carriers at the interface. Oxygen vacancies are shown to recover the almost half-metallic ground state in the superlattice. The effects of the charge imbalance, the strain, and the oxygen vacancies at the interface in the superlattice Fe3 O4 / BaTiO3 can be applied to designing better multifunctional oxide-based systems.

Original languageEnglish
Article number024420
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume79
Issue number2
DOIs
Publication statusPublished - Jan 5 2009

Fingerprint

Oxygen vacancies
Magnetic properties
magnetic properties
Magnetic moments
Oxides
Ground state
Electronic structure
Physical properties
Electrons
oxygen
metallicity
plane waves
physical properties
magnetic moments
electronic structure
ground state
oxides
electrons

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Charge imbalance and magnetic properties at the Fe3O 4/BaTiO3 interface. / Park, Min Sik; Song, Jung Hwan; Freeman, Arthur J.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 79, No. 2, 024420, 05.01.2009.

Research output: Contribution to journalArticle

@article{e21627ccf7ae4e6f9e217e3cb6a78681,
title = "Charge imbalance and magnetic properties at the Fe3O 4/BaTiO3 interface",
abstract = "The electronic structure and physical properties at the interface in the superlattice Fe3 O4 / BaTiO3 were investigated by using the first-principles all-electron full-potential linearized augmented plane-wave method. The loss of half metallicity of bulk Fe3 O4 in the multiferroic superlattice Fe3 O4 / BaTiO3 is related to the charge imbalance effect at the interface. The effect of strain strongly influences the Fe magnetic moments and the spin-polarized carriers at the interface. Oxygen vacancies are shown to recover the almost half-metallic ground state in the superlattice. The effects of the charge imbalance, the strain, and the oxygen vacancies at the interface in the superlattice Fe3 O4 / BaTiO3 can be applied to designing better multifunctional oxide-based systems.",
author = "Park, {Min Sik} and Song, {Jung Hwan} and Freeman, {Arthur J}",
year = "2009",
month = "1",
day = "5",
doi = "10.1103/PhysRevB.79.024420",
language = "English",
volume = "79",
journal = "Physical Review B-Condensed Matter",
issn = "1098-0121",
publisher = "American Physical Society",
number = "2",

}

TY - JOUR

T1 - Charge imbalance and magnetic properties at the Fe3O 4/BaTiO3 interface

AU - Park, Min Sik

AU - Song, Jung Hwan

AU - Freeman, Arthur J

PY - 2009/1/5

Y1 - 2009/1/5

N2 - The electronic structure and physical properties at the interface in the superlattice Fe3 O4 / BaTiO3 were investigated by using the first-principles all-electron full-potential linearized augmented plane-wave method. The loss of half metallicity of bulk Fe3 O4 in the multiferroic superlattice Fe3 O4 / BaTiO3 is related to the charge imbalance effect at the interface. The effect of strain strongly influences the Fe magnetic moments and the spin-polarized carriers at the interface. Oxygen vacancies are shown to recover the almost half-metallic ground state in the superlattice. The effects of the charge imbalance, the strain, and the oxygen vacancies at the interface in the superlattice Fe3 O4 / BaTiO3 can be applied to designing better multifunctional oxide-based systems.

AB - The electronic structure and physical properties at the interface in the superlattice Fe3 O4 / BaTiO3 were investigated by using the first-principles all-electron full-potential linearized augmented plane-wave method. The loss of half metallicity of bulk Fe3 O4 in the multiferroic superlattice Fe3 O4 / BaTiO3 is related to the charge imbalance effect at the interface. The effect of strain strongly influences the Fe magnetic moments and the spin-polarized carriers at the interface. Oxygen vacancies are shown to recover the almost half-metallic ground state in the superlattice. The effects of the charge imbalance, the strain, and the oxygen vacancies at the interface in the superlattice Fe3 O4 / BaTiO3 can be applied to designing better multifunctional oxide-based systems.

UR - http://www.scopus.com/inward/record.url?scp=59749096178&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=59749096178&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.79.024420

DO - 10.1103/PhysRevB.79.024420

M3 - Article

VL - 79

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 2

M1 - 024420

ER -