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Title: Ferroelectric-like hysteresis loop originated from non-ferroelectric effects

Abstract

Piezoresponse force microscopy (PFM) has provided advanced nanoscale understanding and analysis of ferroelectric and piezoelectric properties. In PFM-based studies, electromechanical strain induced by the converse piezoelectric effect is probed and analyzed as a PFM response. However, electromechanical strain can also arise from several non-piezoelectric origins that may lead to a misinterpretation of the observed response. Among them, electrostatic interaction can significantly affect the PFM response. Nonetheless, previous studies explored solely the influence of electrostatic interaction on the PFM response under the situation accompanied with polarization switching. Here, we show the influence of the electrostatic interaction in the absence of polarization switching by using unipolar voltage sweep. The obtained results reveal that the electromechanical neutralization between piezoresponse of polarization and electrostatic interaction plays a crucial role in the observed ferroelectric-like hysteresis loop despite the absence of polarization switching. Furthermore, our work can provide a basic guideline for the correct interpretation of the hysteresis loop in PFM-based studies.

Authors:
 [1];  [1];  [2];  [3];  [1]
  1. Sungkyunkwan Univ. (SKKU), Suwon, (South Korea)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Daegu Gyeongbuk Institute of Science and Technology, Daegu (South Korea)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1329133
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 109; Journal Issue: 10; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; atomic force microscopy; electrostatics; electrical hysteresis; polarization; charge injection

Citation Formats

Kim, Bora, Seol, Daehee, Lee, Shinbuhm, Lee, Ho Nyung, and Kim, Yunseok. Ferroelectric-like hysteresis loop originated from non-ferroelectric effects. United States: N. p., 2016. Web. doi:10.1063/1.4962387.
Kim, Bora, Seol, Daehee, Lee, Shinbuhm, Lee, Ho Nyung, & Kim, Yunseok. Ferroelectric-like hysteresis loop originated from non-ferroelectric effects. United States. doi:10.1063/1.4962387.
Kim, Bora, Seol, Daehee, Lee, Shinbuhm, Lee, Ho Nyung, and Kim, Yunseok. Tue . "Ferroelectric-like hysteresis loop originated from non-ferroelectric effects". United States. doi:10.1063/1.4962387. https://www.osti.gov/servlets/purl/1329133.
@article{osti_1329133,
title = {Ferroelectric-like hysteresis loop originated from non-ferroelectric effects},
author = {Kim, Bora and Seol, Daehee and Lee, Shinbuhm and Lee, Ho Nyung and Kim, Yunseok},
abstractNote = {Piezoresponse force microscopy (PFM) has provided advanced nanoscale understanding and analysis of ferroelectric and piezoelectric properties. In PFM-based studies, electromechanical strain induced by the converse piezoelectric effect is probed and analyzed as a PFM response. However, electromechanical strain can also arise from several non-piezoelectric origins that may lead to a misinterpretation of the observed response. Among them, electrostatic interaction can significantly affect the PFM response. Nonetheless, previous studies explored solely the influence of electrostatic interaction on the PFM response under the situation accompanied with polarization switching. Here, we show the influence of the electrostatic interaction in the absence of polarization switching by using unipolar voltage sweep. The obtained results reveal that the electromechanical neutralization between piezoresponse of polarization and electrostatic interaction plays a crucial role in the observed ferroelectric-like hysteresis loop despite the absence of polarization switching. Furthermore, our work can provide a basic guideline for the correct interpretation of the hysteresis loop in PFM-based studies.},
doi = {10.1063/1.4962387},
journal = {Applied Physics Letters},
number = 10,
volume = 109,
place = {United States},
year = {Tue Sep 06 00:00:00 EDT 2016},
month = {Tue Sep 06 00:00:00 EDT 2016}
}

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Cited by: 5 works
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Works referenced in this record:

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