In situ synchrotron x-ray diffraction study of electrical field induced fatigue in Pt/PbZr0.45Ti0.55O3/Pt ferroelectric capacitors / Menou N., Muller Ch., Baturin I.S., Kuznetsov D.K., Shur V.Ya., Hodeau J.L., Schneller T. // Journal of Physics Condensed Matter. - 2005. - V. 17, l. 48. - P. 7681-7688.

ISSN:

09538984

Type:

Article

Abstract:

Highly brilliant synchrotron x-ray radiation was used to measure in situ the microstructural response of a ferroelectric capacitor subjected to bipolar rectangular pulses. High-resolution x-ray diffraction experiments were performed on a (111)-oriented PbZr0.45Ti0.55O3 thin film with a composition in the morphotropic region and sandwiched between two platinum electrodes. From original real time measurements, the microstructural changes with electrical cycling have been evidenced and correlated with the observed polarization fatigue measured during the x-ray diffraction experiment. From concomitant variations of the diffracted intensity and the switching current maximum, several mechanisms have been discussed as a possible origin of the polarization fatigue: field induced phase transformation, oxygen vacancy self-ordering and widening of the internal bulk screening field distribution function during cyclic switching. © 2005 IOP Publishing Ltd.

Author keywords:

Index keywords:

Capacitors; Electric field effects; Electrodes; Fatigue of materials; Lead compounds; Microstructure; Platinum; Polarization; Synchrotron radiation; Thin films; X ray diffraction analysis; Bipolar rec

DOI:

10.1088/0953-8984/17/48/018

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Affiliations	L2MP, Laboratoire Matériaux et Microélectronique de Provence, Université du Sud Toulon Var, BP 20132, F-83957 La Garde Cedex, France; Institute of Physics and Applied Mathematics, Ural State University, Lenin Avenue 51, 620083 Ekaterinburg, Russian Federation; Laboratoire de Cristallographie, BP 166, F-38042 Grenoble Cedex 9, France; Institut fuer Werkstoffe der Elektrotechnik, RWTH Aachen, D-52056 Aachen, Germany
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Correspondence Address	Muller, Ch.; L2MP, Laboratoire Matériaux et Microélectronique de Provence, Université du Sud Toulon Var, BP 20132, F-83957 La Garde Cedex, France; email: christophe.muller@12mp.fr
CODEN	JCOME
Language of Original Document	English
Abbreviated Source Title	J Phys Condens Matter
Source	Scopus