Electric control of the magnetization in BiFeO3/LaFeO 3 superlattices

Zeila Zanolli; Jacek C. Wojdeł; Jorge Íñiguez; Philippe Ghosez

doi:10.1103/PhysRevB.88.060102

Electric control of the magnetization in BiFeO³/LaFeO ³ superlattices

Zeila Zanolli^*, Jacek C. Wojdeł, Jorge Íñiguez, Philippe Ghosez

^*Corresponding author for this work

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

Abstract

First-principles techniques are used to investigate the behavior of BiFeO³/LaFeO³ perovskite oxide superlattices epitaxially grown on a (001)-SrTiO³ substrate. The calculations show that 1/1 superlattices exhibit a Pmc2₁ ground state combining a trilinear coupling of one polar and two oxygen rotational lattice modes, and weak ferromagnetism. The microscopic mechanism allowing one to manipulate the magnetization with an electric field in such systems is presented and its dependence on strain and chemical substitution is discussed. BiFeO ³/LaFeO³ artificial superlattices appear to be good candidates to achieve electric switching of magnetization at room temperature.

Original language	English
Article number	060102
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	88
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevB.88.060102
Publication status	Published - 15 Aug 2013
Externally published	Yes

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title = "Electric control of the magnetization in BiFeO3/LaFeO 3 superlattices",

abstract = "First-principles techniques are used to investigate the behavior of BiFeO3/LaFeO3 perovskite oxide superlattices epitaxially grown on a (001)-SrTiO3 substrate. The calculations show that 1/1 superlattices exhibit a Pmc21 ground state combining a trilinear coupling of one polar and two oxygen rotational lattice modes, and weak ferromagnetism. The microscopic mechanism allowing one to manipulate the magnetization with an electric field in such systems is presented and its dependence on strain and chemical substitution is discussed. BiFeO 3/LaFeO3 artificial superlattices appear to be good candidates to achieve electric switching of magnetization at room temperature.",

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AU - Zanolli, Zeila

AU - Wojdeł, Jacek C.

AU - Íñiguez, Jorge

AU - Ghosez, Philippe

PY - 2013/8/15

Y1 - 2013/8/15

N2 - First-principles techniques are used to investigate the behavior of BiFeO3/LaFeO3 perovskite oxide superlattices epitaxially grown on a (001)-SrTiO3 substrate. The calculations show that 1/1 superlattices exhibit a Pmc21 ground state combining a trilinear coupling of one polar and two oxygen rotational lattice modes, and weak ferromagnetism. The microscopic mechanism allowing one to manipulate the magnetization with an electric field in such systems is presented and its dependence on strain and chemical substitution is discussed. BiFeO 3/LaFeO3 artificial superlattices appear to be good candidates to achieve electric switching of magnetization at room temperature.

AB - First-principles techniques are used to investigate the behavior of BiFeO3/LaFeO3 perovskite oxide superlattices epitaxially grown on a (001)-SrTiO3 substrate. The calculations show that 1/1 superlattices exhibit a Pmc21 ground state combining a trilinear coupling of one polar and two oxygen rotational lattice modes, and weak ferromagnetism. The microscopic mechanism allowing one to manipulate the magnetization with an electric field in such systems is presented and its dependence on strain and chemical substitution is discussed. BiFeO 3/LaFeO3 artificial superlattices appear to be good candidates to achieve electric switching of magnetization at room temperature.

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Electric control of the magnetization in BiFeO³/LaFeO ³ superlattices

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