Abstract
The multiferroic properties of a laminated heterostructure consisting of magnetostrictive Ni2MnGa ribbon and piezoelectric lead-magnesium-niobate-lead titanate crystal are reported. A tunability of the electric field-induced magnetic field was measured by a shift in the ferromagnetic resonance (FMR) field by 230 Oe at X-band while applying an electric field of 6 kV/cm. Concomitantly, a frequency shift in the FMR of 370 MHz was observed. The sensitive tunability stems from a large linear magnetoelectric coupling coefficient, A=41 Oe cm/kV, measured in the heterostructure. This represents a new class of metallic multiferroic heterostructures that operate at microwave frequencies.
Keywords
laminated heterostructures, magnetoelectric coupling, E-field tunability, Ni2MnGa, lead-magnesium-niobate-lead titanate
Subject Categories
Ferromagnetic resonance, Magnetic fields, Heterostructures
Disciplines
Electromagnetics and photonics
Publisher
American Institute of Physics
Publication Date
9-15-2008
Rights Information
Copyright 2008 American Institute of Physics.
Rights Holder
American Institute of Physics
Permanent URL
Recommended Citation
Chen, Yajie; Wang, Jingmin; Liu, Ming; Lou, Jing; Sun, Nian X.; Vittoria, Carmine; and Harris, Vincent G., "Giant magnetoelectric coupling and E-field tunability in a laminated Ni2MnGa/lead-magnesium-niobate-lead titanate multiferroic heterostructure" (2008). Electrical and Computer Engineering Faculty Publications. Paper 55. http://hdl.handle.net/2047/d20002226
Figure 1
giant_magnetoelectric_fig2.zip (39 kB)
Figure 2
giant_magnetoelectric_fig3.zip (131 kB)
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Additional Files
giant_magnetoelectric_fig1.zip (221 kB)Figure 1
giant_magnetoelectric_fig2.zip (39 kB)
Figure 2
giant_magnetoelectric_fig3.zip (131 kB)
Figure 3
Notes
Originally published in Applied Physics Letters 93, 112502 (2008). DOI:10.1063/1.2986480 (http://dx.doi.org/10.1063/1.2986480).