Journal article

Publication year: 2014

Journal: Journal of Applied Physics

Volume number: 116

Issue number: 12

ISSN: 0021-8979

eISSN: 1089-7550

DOI Link: https://doi.org/10.1063/1.4896531

Publisher: American Institute of Physics

Abstract: 
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 BaTiO3 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 BaTiO3, 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. (C) 2014 AIP Publishing LLC.

Harvard Citation style: Long, C., Ebeling, D., Solares, S. and Cannara, R. (2014) Friction imprint effect in mechanically cleaved BaTiO₃ (001), Journal of Applied Physics, 116(12), Article 124107. https://doi.org/10.1063/1.4896531

APA Citation style: Long, C., Ebeling, D., Solares, S., & Cannara, R. (2014). Friction imprint effect in mechanically cleaved BaTiO₃ (001). Journal of Applied Physics. 116(12), Article 124107. https://doi.org/10.1063/1.4896531