Electric field control of exchange bias in multiferroic epitaxial heterostructures

Abstract

The magnetic exchange bias between epitaxial thin films of the multiferroic (antiferromagnetic and ferroelectric) hexagonal YMnO3 oxide and a soft ferromagnetic (FM) layer is used to couple the magnetic response of the ferromagnetic layer to the magnetic state of the antiferromagnetic one. We will show that biasing the ferroelectric YMnO3 layer by an appropriate electric field allows modifying and controlling the magnetic exchange bias and subsequently the magnetotransport properties of the FM layer. This finding may contribute to pave the way towards a new generation of electric-field controlled spintronics devices.

15 pages, 5 figures, submitted

References in corpus (1)

• Exchange biasing and electric polarization with YMnO3

Cited by in corpus (7)

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• Oxide spintronics
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• Electric field switching of antiferromagnetic domains in YMn2O5: a probe of the multiferroic mechanism
• Anomalous Ferromagnetism in TbMnO3 Thin Films
• Electric field effects on magnetotransport properties of multiferroic Py/YMnO3/Pt heterostructures
• Surface spin dynamics of antiferromagnetically coupled frustrated triangular films