Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.3095498
Title: Giant magnetodielectric effect and magnetic field tunable dielectric resonance in spinel MnZn ferrite
Authors: Chen, Y.
Zhang, X.-Y. 
Vittoria, C.
Harris, V.G.
Issue Date: 2009
Citation: Chen, Y., Zhang, X.-Y., Vittoria, C., Harris, V.G. (2009). Giant magnetodielectric effect and magnetic field tunable dielectric resonance in spinel MnZn ferrite. Applied Physics Letters 94 (10) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3095498
Abstract: The sensitive response of the dielectric permittivity under the application of magnetic fields in Mn0.60 Zn0.40 Fe 2.12O4+δ polycrystalline ferrite is presented. A magnetic field of 3.5 kOe induced a giant magnetodielectric { MD= [ε′ (H) - ε′ (0)]/ε′ (0) } response, of 1800% at f=7 MHz, at room temperature. The ferrite exhibits a large magnetic field-induced frequency response of 180 Hz/Oe. We suggest that this effect arises primarily from a spin-dependent space charge polarization mechanism in response to the application of dc magnetic fields. © 2009 American Institute of Physics.
Source Title: Applied Physics Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/117030
ISSN: 00036951
DOI: 10.1063/1.3095498
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