Electronic tuning of magnetic permeability in Co₂Z hexaferrite toward high frequency electromagnetic device miniaturization
Originally published in Applied Physics Letters 98, 202502 (2011). DOI:10.1063/1.3590771(ttp://dx.doi.org/10.1063/1.3590771).
The magnetic and magnetostriction properties of Z-type cobalt-doped barium hexaferrite with perpendicular c-axis crystallographic texture are presented. The hexaferrite was utilized as a component in Co₂Z/lead magnesium niobate-lead titanate multiferroic heterostructures whose tunability of permeability with electric field in terms of ferromagnetic resonance shift was supported by experiments and theoretical calculation. A permeability change of 16% was measured by an induced magnetic field of 38 Oe under the application of 6 kV/cm of electric field. These findings lay the foundation for the application of Z-type hexaferrites in tunable rf and microwave devices valued for sending, receiving, and manipulating electromagnetic signals.
Yajie Chen, Andrew Daigle, Trifon Fitchorov, Bolin Hu, Michael Geiler, Anton Geiler, C. Vittoria, and V. G. Harris. "Electronic tuning of magnetic permeability in Co₂Z hexaferrite toward high frequency electromagnetic device miniaturization" Electrical and Computer Engineering Faculty Publications (2011).
Available at: http://works.bepress.com/ychen/10