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Journal Article

Conventional and microcontact impedance studies of Mn-Zn ferrite ceramics

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Lee,  J.-S.
Department Physical Chemistry of Solids (Joachim Maier), Max Planck Institute for Solid State Research, Max Planck Society;

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Fleig,  J.
Department Physical Chemistry of Solids (Joachim Maier), Max Planck Institute for Solid State Research, Max Planck Society;

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Maier,  J.
Department Physical Chemistry of Solids (Joachim Maier), Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Lee, J.-S., Fleig, J., Maier, J., & Kim, D.-Y. (2004). Conventional and microcontact impedance studies of Mn-Zn ferrite ceramics. Journal of Materials Research, 19(3), 864-871.


Cite as: https://hdl.handle.net/21.11116/0000-000E-FEF8-D
Abstract
Microcontact impedance spectroscopy in conjunction with conventional
impedance techniques has been performed to elucidate microstructural
and compositional inhomogeneities in polycrystalline Mn-Zn ferrites.
Microcontact studies reveal the occurrence of oxygen stoichiometry
gradients in these typically prepared ferrite ceramics together with a
strong spatial resistance variation from boundary to boundary. This
leads to a reinterpretation of the conventional impedance spectra of
ferrites.