Direct studies of domain switching dynamics in thin film ferroelectric capacitors
By Alexei Gruverman, B. Rodriguez, C. Dehoff, J. D. Waldrep, A. Kingon, Robert J. Nemanich, J. Cross. 2005
246 citations recorded by the source corpus.
An experimental approach for direct studies of the polarization reversal mechanism in thin film ferroelectric capacitors based on piezoresponse force microscopy (PFM) in conjunction with pulse switching capabilities is presented. Instant domain configurations developing in a 3×3μm2 capacitor at different stages of the polarization reversal process have been registered using step-by-step switching and subsequent PFM imaging. The developed approach allows direct comparison of experimentally measured microscopic switching behavior with parameters used by phenomenological switching models. It has been found that in the low field regime (just above the threshold value) used in the present study, the mechanism of polarization reversal changes during the switching cycle from the initial nucleation-dominated process to the lateral domain expansion at the later stages. The classical nucleation model of Kolmogorov–Avrami–Ishibashi (KAI) provides reasonable approximation for the nucleation-dominated stage of switchi...
Subfields: Atomic and Molecular Physics, and Optics, Biomedical Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/168eeba47828cf2a7743151422f234c98a33ccd5
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In Atomic and Molecular Physics, and Optics
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Citations in the corpus
- Domain wall nanoelectronics (2012, methodology): “…characterization of the switching process (with developments such as stroboscopic PFM and PFM spectroscopy) and (ii) the structure of domain walls (Gruverman et al., 2005; Jungk, Hoffmann, and Soergel, 2006; Rodriguez et al., 2007a, 2007b; Morozovska et al., 2008; Kalinin et al., 2010) (see also…”
- Learning through ferroelectric domain dynamics in solid-state synapses (2017, unknown): “For this purpose, we image the pseudo real-time evolution of the ferroelectric domain config-uration by means of stroboscopic piezoresponse force microscopy (PFM) 29 , while simultaneously measuring the electrical properties of the device.”
- Vortex ferroelectric domains (2008, background): “Here we report the direct observation of a doughnutshape domain pattern appearing during polarization reversal in micrometer-sized ferroelectric capacitors [13].”