Domain Dynamics in Piezoresponse Force Spectroscopy: Quantitative Deconvolution and Hysteresis Loop Fine Structure

Journal Article · Tue Jan 01 04:00:00 EST 2008 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2919792· OSTI ID:936299

Bdikin, Igor ^[1]; Kholkin, Andrei ^[1]; Morozovska, A. N. ^[2]; Svechnikov, S. V. ^[2]; Kim, S. -H. ^[3]; Kalinin, Sergei V ^[4]

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1. University of Aveiro, Portugal
2. National Academy of Science of Ukraine, Kiev, Ukraine
3. INOSTEK Inc., Gyeonggi, Korea
4. ORNL

Domain dynamics in the Piezoresponse Force Spectroscopy (PFS) experiment is studied using the combination of local hysteresis loop acquisition with simultaneous domain imaging. The analytical theory for PFS signal from domain of arbitrary cross-section and length is developed for the analysis of experimental data on Pb(Zr,Ti)O3 polycrystalline films. The results suggest formation of oblate domain at early stage of the nucleation and growth, consistent with efficient screening of depolarization field. The fine structure of the hysteresis loop is shown to be related to the observed jumps in the domain geometry during domain wall propagation (nanoscale Barkhausen jumps), indicative of strong domain-defect interactions.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 936299
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CRYSTAL GROWTH
DEPOLARIZATION
FILMS
FINE STRUCTURE
HYSTERESIS
NUCLEATION
PIEZOELECTRICITY
PZT
SPECTROSCOPY