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Applied Physics Letters / Volume 97 / Issue 5 / MAGNETISM AND SUPERCONDUCTIVITY

Appl. Phys. Lett. 97, 052502 (2010); http://dx.doi.org/10.1063/1.3475417 (3 pages)

Electrically controlled magnetization switching in a multiferroic heterostructure

Yajie Chen, Trifon Fitchorov, Carmine Vittoria, and V. G. Harris

Department of Electrical and Computer Engineering, Center for Microwave Magnetic Materials and Integrated Circuits, Northeastern University, Boston, Massachusetts 02115, USA

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(Received 1 April 2010; accepted 15 July 2010; published online 2 August 2010)

A demonstration of magnetization reversal via the application of electric field across a multiferroic heterostructure, consisting of a FeCoV ribbon bonded to a lead magnesium niobate-lead titanate crystal, is presented. The magnetization switching occurs by an abrupt change in magnetization near ferromagnetic coercivity, coinciding with an electrical field-induced magnetic anisotropy field. Experiments reveal a converse magnetoelectric coupling of α = μ0(dM/dE) = 1.6×10−7 s m−1 upon magnetization reversal in the strain-mediated heterostructure. The frequency dependence of magnetization switching is presented and explained within the framework of a relaxation model for the multiferroic heterostructure.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

cobalt alloys, coercive force, ferroelectric materials, ferromagnetic materials, interface magnetism, iron alloys, lead compounds, magnetic anisotropy, magnetic switching, magnetisation reversal, magnetoelectric effects, multiferroics, vanadium alloys

PACS

  • 75.85.+t

    Magnetoelectric effects, multiferroics

  • 75.60.Jk

    Magnetization reversal mechanisms

  • 75.60.Ej

    Magnetization curves, hysteresis, Barkhausen and related effects

  • 75.30.Gw

    Magnetic anisotropy

  • 77.80.-e

    Ferroelectricity and antiferroelectricity

  • 75.78.Jp

    Ultrafast magnetization dynamics and switching

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3475417

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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