Results 31 to 40 of about 13,171 (167)
Magnetoelectric coupling in MnTiO3 [PDF]
We give general arguments that show that the linear magnetoelectric effect in antiferromagnetic materials gives rise to a magnetocapacitance anomaly—a divergence of the dielectric constant at the magnetic ordering temperature TN that appears in an ...
Blake, G.R.,+5 more
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Sinusoidal electromagnon in RMnO3: Indication of anomalous magnetoelectric coupling [PDF]
The optical spectra in the family of multiferroic manganites RMnO3 is a great puzzle. Current models can not explain the fact that two strong electromagnons are present in the non-collinear spin cycloidal phase, with only one electromagnon surviving the ...
Markku P. V. Stenberg+2 more
core +2 more sources
Magnetoelectric coupling in superconductor-helimagnet heterostructures [PDF]
The Ginzburg-Landau free energy of a conventional superconductor coupled to a helimagnet is microscopically derived using functional field integral techniques. We show that the spin texture leads to a Lifshitz invariant in the free energy, which couples the momentum density of the superconducting condensate to the magnetization of the helimagnet.
openaire +4 more sources
Weak ferromagnetism and magnetoelectric coupling in bismuth ferrite [PDF]
4 pages, 2 figures, uses revtex4, to be ...
Claude Ederer, Nicola A. Spaldin
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Nonfrustrated magnetoelectric with incommensurate magnetic order in magnetic field
We discuss a model nonfrustrated magnetoelectric in which strong enough magnetoelectric coupling produces incommensurate magnetic order leading to ferroelectricity. Properties of the magnetoelectric in magnetic field directed perpendicular to wave vector
A. V. Syromyatnikov+3 more
core +1 more source
Designing asymmetric multiferroics with strong magnetoelectric coupling [PDF]
Multiferroics offer exciting opportunities for electric-field control of magnetism. Unfortunately, single-phase multiferroics suitable for such applications at room temperature has not been discovered. Here, we propose the concept of a new type of multiferroics, namely, "asymmetric multiferroic".
Xingze Lu, Hongjun Xiang
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Ferromagnet-ferroelectric-metal superlattices are proposed to realize the large room-temperature magnetoelectric effect. Spin dependent electron screening is the fundamental mechanism at the microscopic level.
Alexander A. Demkov+9 more
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Landau Theory of Domain Wall Magnetoelectricity [PDF]
We calculate the exact analytical solution to the domain wall properties in a multiferroic system with two order parameters that are coupled bi-quadratically.
E. M. Lifshitz+7 more
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Magnetoelectric coupling in noncollinear ferrimagnets
© Kazan Federal University (KFU). The analytical expressions for the energy coupling of exchange coupled spins with electric field, induced by odd crystal field has been derived in the third order perturbation theory, combining the action of electric field, spin-orbit and exchange interactions.
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Structural, magnetic and ferromagnetic resonance characterization studies have been performed on lay-ered ferromagnetic-ferroelectric oxides that show strong magnetoelectric coupling. The samples contained thick films of ferrites or substituted lanthanum
A.A. Bush+10 more
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