Measurement of the polarization vector in BiMnO3 multiferroic thin films using surface and embedded microelectrodes

We present a technique for resolving multiple spatial components of the remanent polarization vectors in thin film ferroelectrics. Using complementary electrode configurations of surface and embedded interdigital microelectrode arrays, both the in-plane and out-of-plane polarizations were measured i...

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Bibliographic Details
Published in:Journal of applied physics 2013-09, Vol.114 (9)
Main Authors: Mickel, Patrick R., Buvaev, Sanal, Kamalov, Andrei, Jeen, Hyoungjeen, Finnegan, Patrick, Biswas, Amlan, Hebard, Arthur F., James, Conrad D.
Format: Article
Language:English
Subjects:
Arrays
Electrodes
Ferroelectric materials
Mathematical analysis
Microelectrodes
Polarization
Thin films
Vectors (mathematics)
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Summary:We present a technique for resolving multiple spatial components of the remanent polarization vectors in thin film ferroelectrics. Using complementary electrode configurations of surface and embedded interdigital microelectrode arrays, both the in-plane and out-of-plane polarizations were measured independently. As a result, we found that the ferroelectric polarization vector was 16% larger than what typical measurement geometries would report. The spatial sensitivity exhibited by the method presented here is crucial to identifying novel coupling mechanisms which lead to modified ferroelectric polarization vector components.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4819450