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Full-Text Articles in Physics
Magnetoelectric Effect At The Fe3O4 /Batio3 (001) Interface: A First-Principles Study, Manish K. Niranjan, Julian P. Velev, Chun-Gang Duan, Sitaram S. Jaswal, Evgeny Y. Tsymbal
Magnetoelectric Effect At The Fe3O4 /Batio3 (001) Interface: A First-Principles Study, Manish K. Niranjan, Julian P. Velev, Chun-Gang Duan, Sitaram S. Jaswal, Evgeny Y. Tsymbal
Evgeny Tsymbal Publications
Multiferroic heterostructures comprising ferroelectric and ferro(ferri)magnetic constituents have recently attracted considerable interest due to the strong coupling between magnetic and electric properties which may have interesting applications. Here we investigate the magnetoelectric coupling at the ferrimagnetic/ ferroelectric Fe3O4 /BaTiO3 (001) interfaces within the framework of density-functional theory. The coupling in this system originates from the interface bonding sensitive to atomic displacements at the interface and leads to the change in the interface magnetization when the polarization of the ferroelectric layer reverses. We consider two types of interface terminations of Fe3O4 which have different …
Interface Effects In Spin-Polarized Metal/Insulator Layered Structures, Julian P. Velev, Peter A. Dowben, Evgeny Y. Tsymbal, Stephen J. Jenkins, A. N. Caruso
Interface Effects In Spin-Polarized Metal/Insulator Layered Structures, Julian P. Velev, Peter A. Dowben, Evgeny Y. Tsymbal, Stephen J. Jenkins, A. N. Caruso
Evgeny Tsymbal Publications
Recent advances in thin-film deposition techniques, such as molecular beam epitaxy and pulsed laser deposition, have allowed for the manufacture of heterostructures with nearly atomically abrupt interfaces. Although the bulk properties of the individual heterostructure components may be well-known, often the heterostructures exhibit novel and sometimes unexpected properties due to interface effects. At heterostructure interfaces, lattice structure, stoichiometry, interface electronic structure (bonding, interface states, etc.), and symmetry all conspire to produce behavior different from the bulk constituents. This review discusses why knowledge of the electronic structure and composition at the interfaces is pivotal to the understanding of the properties of …
Surface Magnetoelectric Effect In Ferromagnetic Metal Films, Chun-Gang Duan, Julian P. Velev, Renat F. Sabirianov, Ziqiang Zhu, Junhao Chu, Sitaram S. Jaswal, Evgeny Y. Tsymbal
Surface Magnetoelectric Effect In Ferromagnetic Metal Films, Chun-Gang Duan, Julian P. Velev, Renat F. Sabirianov, Ziqiang Zhu, Junhao Chu, Sitaram S. Jaswal, Evgeny Y. Tsymbal
Evgeny Tsymbal Publications
A surface magnetoelectric effect is revealed by density-functional calculations that are applied to ferromagnetic Fe(001), Ni(001), and Co(0001) films in the presence of an external electric field. The effect originates from spin-dependent screening of the electric field which leads to notable changes in the surface magnetization and the surface magnetocrystalline anisotropy. These results are of considerable interest in the area of electrically controlled magnetism and magnetoelectric phenomena.