Dynamic piezoresponse force microscopy: Spatially resolved probing of polarization dynamics in time and voltage domains

Journal Article · Sat Dec 31 23:00:00 EST 2011 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4746080· OSTI ID:1055128

Kumar, Amit ^[1]; Ehara, Y ^[2]; Wada, A. ^[2]; Funakubo, Hiroshi ^[1]; Griggio, Flavio ^[1]; Trolier-McKinstry, Susan ^[3]; Jesse, Stephen ^[1]; Kalinin, Sergei V ^[1]

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1. ORNL
2. Tokyo Institute of Technology
3. Pennsylvania State University

An approach for probing dynamic phenomena during hysteresis loop measurements in piezoresponse force microscopy (PFM) is developed. Dynamic PFM (D-PFM) necessitates development of 5-dimensional (5D) data acquisition protocols and associated methods for analysis and visualization of multidimensional data. Using a combination of multivariate statistical analysis and phenomenological fitting, we explore dynamic behavior during polarization switching in model ferroelectric films with dense ferroelastic domain structures and in ferroelectric capacitors. In polydomain films, multivariate analysis of the switching data suggests that ferroelectric and ferroelastic components can be decoupled and time dynamics can be explored. In capacitors, a strong correlation between polarization dynamics and microstructure is observed. The future potential of D-PFM for probing time-dependent hysteretic phenomena in ferroelectrics and ionic systems is discussed.

• Research Organization: Oak Ridge National Laboratory (ORNL); Center for Nanophase Materials Sciences
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1055128
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 5 Vol. 112; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

Dynamic piezoresponse force microscopy
Polarization dynamics