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Multiple magnetoelectric coupling effect in BaTiO₃/Sr₂CoMoO₆ heterostructures.

ABSTRACT: Due to the demand of controlling magnetism by electric fields for future storage devices, materials with magnetoelectric coupling are of great interests. Based on first-principles calculations, we study the electronic and magnetic properties of a double perovskite Sr₂CoMoO₆ (SCMO) in a hybrid heterostructure combined with BaTiO₃ (BTO) in different polarization states. The calculations show that by introducing ferroelectric state in BTO, SCMO transforms from an antiferromagnetic semiconductor to a half-metal. Specially, altering the polarization direction not only controls the interfacial magnetic moment, but also changes the orbital occupancy of the Co-3d state. This novel multiple magnetoelectric coupling opens possibilities for designing new type of spintronic and microelectronic devices with controllable degree of freedom of interfacial electrons in the heterostructures.

SUBMITTER: Liu C

PROVIDER: S-EPMC5478603 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature

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Multiple magnetoelectric coupling effect in BaTiO3/Sr2CoMoO6 heterostructures.

Liu Chang C Wan Wenhui W Gong Sai S Zhang Hongbin H Guo Wei W

Scientific reports 20170620 1

Due to the demand of controlling magnetism by electric fields for future storage devices, materials with magnetoelectric coupling are of great interests. Based on first-principles calculations, we study the electronic and magnetic properties of a double perovskite Sr2CoMoO6 (SCMO) in a hybrid heterostructure combined with BaTiO3 (BTO) in different polarization states. The calculations show that by introducing ferroelectric state in BTO, SCMO transforms from an an ...[more]

PMID: 28634328

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