Volume 93, Number 1, January 2011
|Number of page(s)||5|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||12 January 2011|
Magnetically switched electric polarity of domain walls in iron garnet films
Physics Department, M.V. Lomonosov Moscow State University - Moscow, Russia
2 A.M. Prokhorov General Physics Institute, Russian Academy of Science - Moscow, Russia
Accepted: 20 December 2010
Spiral multiferroics whose ferroelectricity is driven by spatial spin modulation attract considerable attention due to strong magnetoelectric coupling observed in them. The present paper shows that a similar mechanism is involved in the case of conventional micromagnetic structures such as domain walls. It is shown experimentally and theoretically that the domain wall in iron garnet films has electric polarization which can be switched by an external magnetic field. From the practical application standpoint it provides an intriguing opportunity of micromagnetic structures controlled by an electric field in low-power-consumption spintronic and magnonic devices.
PACS: 77.55.Nv – Multiferroic/magnetoelectric films / 75.85.+t – Magnetoelectric effects, multiferroics / 75.60.Ch – Domain walls and domain structure
© EPLA, 2011
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