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Magnetization Reversal by Electric-Field Decoupling of Magnetic and Ferroelectric Domains Walls in Multiferroic-Based Heterostructures

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arxiv 1009.0820 v1 pith:IKACYHQH submitted 2010-09-04 cond-mat.mtrl-sci

Magnetization Reversal by Electric-Field Decoupling of Magnetic and Ferroelectric Domains Walls in Multiferroic-Based Heterostructures

V. Skumryev , V. Laukhin , I. Fina , X. Mart\'i , F. S\'anchez , M. Gospodinov , J. Fontcuberta This is my paper
classification cond-mat.mtrl-sci
keywords magneticdecouplingdomainselectric-fieldferroelectriclumno3magnetizationswitching
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We demonstrate that the magnetization of a ferromagnet in contact with an antiferromagnetic multiferroic (LuMnO3) can be speedily reversed by electric field pulsing, and the sign of the magnetic exchange bias can switch and recover isothermally. As LuMnO3 is not ferroelastic, our data conclusively show that this switching is not mediated by strain effects but is a unique electric-field driven decoupling of the ferroelectric and ferromagnetic domains walls. Their distinct dynamics are essential for the observed magnetic switching.

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