Friction imprint effect in mechanically cleaved BaTiO{sub 3} (001)
Journal Article
·
· Journal of Applied Physics
- Center for Nanoscale Science and Technology, NIST, Gaithersburg, Maryland 20899 (United States)
- Institute of Applied Physics, Justus Liebig University of Giessen, 35392 Giessen (Germany)
- Department of Mechanical and Aerospace Engineering, George Washington University, Washington, DC 20052 (United States)
Adsorption, chemisorption, and reconstruction at the surfaces of ferroelectric materials can all contribute toward the pinning of ferroelectric polarization, which is called the electrical imprint effect. Here, we show that the opposite is also true: freshly cleaved, atomically flat surfaces of (001) oriented BaTiO{sub 3} exhibit a persistent change in surface chemistry that is driven by ferroelectric polarization. This surface modification is explored using lateral force microscopy (LFM), while the ferroelectric polarization is probed using piezoresponse force microscopy. We find that immediately after cleaving BaTiO{sub 3}, LFM reveals friction contrast between ferroelectric domains. We also find that this surface modification remains after the ferroelectric domain distribution is modified, resulting in an imprint of the original ferroelectric domain distribution on the sample surface. This friction imprint effect has implications for surface patterning as well as ferroelectric device operation and failure.
- OSTI ID:
- 22305716
- Journal Information:
- Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 12 Vol. 116; ISSN JAPIAU; ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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