Maxwell-Wagner space charge effects on the Pb(Zr,Ti)O-3-CoFe2O4 multilayers

Ortega, N. and Kumar, A. and Katiyar, R. S. and Scott, J. F. (2007) Maxwell-Wagner space charge effects on the Pb(Zr,Ti)O-3-CoFe2O4 multilayers. Applied Physics Letters, 91 (10). p. 102902. ISSN 0003-6951 DOI 10.1063/1.2779853

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Abstract

Electrical properties of Pb(Zr0.53Ti0.47)O3/CoFe3O4 (PZT/CFO) multilayers (MLs) were investigated in the light of Maxwell-Wagner space charge effects and the data differ from those of BiFeO3/CoFe3O4 nanocomposites. These MLs are of special interest as weak field sensors of magnetism. These data fit the Maxwell-Wagner space charge model of Catalan et al. [Appl. Phys. Lett. 77, 3078 (2000)]. Very large temperature shifts in dielectric loss peak (>200 K) are indicative of high space charge density at the PZT/CFO interfaces. These conclusions are confirmed by spurious hysteresis loop that are similar to those of highly conducting specimens.

Item Type: Article
Uncontrolled Keywords: 2007 AREP IA55 2007 P
Subjects: 03 - Mineral Sciences
Divisions: 03 - Mineral Sciences
Journal or Publication Title: Applied Physics Letters
Volume: 91
Page Range: p. 102902
Identification Number: 10.1063/1.2779853
Depositing User: Sarah Humbert
Date Deposited: 16 Feb 2009 13:03
Last Modified: 23 Jul 2013 10:08
URI: http://eprints.esc.cam.ac.uk/id/eprint/570

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