Determination of ferroelectric contributions to electromechanical response by frequency dependent piezoresponse force microscopy

Daehee Seol; Seongjae Park; Olexandr V. Varenyk; Shinbuhm Lee; Ho Nyung Lee; Anna N. Morozovska; Yunseok Kim

doi:10.1038/srep30579

Determination of ferroelectric contributions to electromechanical response by frequency dependent piezoresponse force microscopy

Daehee Seol, Seongjae Park, Olexandr V. Varenyk, Shinbuhm Lee, Ho Nyung Lee, Anna N. Morozovska, Yunseok Kim

Materials Science and Technology Div

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

Hysteresis loop analysis via piezoresponse force microscopy (PFM) is typically performed to probe the existence of ferroelectricity at the nanoscale. However, such an approach is rather complex in accurately determining the pure contribution of ferroelectricity to the PFM. Here, we suggest a facile method to discriminate the ferroelectric effect from the electromechanical (EM) response through the use of frequency dependent ac amplitude sweep with combination of hysteresis loops in PFM. Our combined study through experimental and theoretical approaches verifies that this method can be used as a new tool to differentiate the ferroelectric effect from the other factors that contribute to the EM response.

Original language	English
Article number	30579
Journal	Scientific Reports
Volume	6
DOIs	https://doi.org/10.1038/srep30579
State	Published - Jul 28 2016

Funding

Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2014R1A1A1008061 and NRF-2014R1A4A1008474).

Funders	Funder number
Ministry of Science, ICT and Future Planning	NRF-2014R1A4A1008474, NRF-2014R1A1A1008061
National Research Foundation of Korea

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title = "Determination of ferroelectric contributions to electromechanical response by frequency dependent piezoresponse force microscopy",

abstract = "Hysteresis loop analysis via piezoresponse force microscopy (PFM) is typically performed to probe the existence of ferroelectricity at the nanoscale. However, such an approach is rather complex in accurately determining the pure contribution of ferroelectricity to the PFM. Here, we suggest a facile method to discriminate the ferroelectric effect from the electromechanical (EM) response through the use of frequency dependent ac amplitude sweep with combination of hysteresis loops in PFM. Our combined study through experimental and theoretical approaches verifies that this method can be used as a new tool to differentiate the ferroelectric effect from the other factors that contribute to the EM response.",

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AU - Seol, Daehee

AU - Park, Seongjae

AU - Varenyk, Olexandr V.

AU - Lee, Shinbuhm

AU - Lee, Ho Nyung

AU - Morozovska, Anna N.

AU - Kim, Yunseok

PY - 2016/7/28

Y1 - 2016/7/28

N2 - Hysteresis loop analysis via piezoresponse force microscopy (PFM) is typically performed to probe the existence of ferroelectricity at the nanoscale. However, such an approach is rather complex in accurately determining the pure contribution of ferroelectricity to the PFM. Here, we suggest a facile method to discriminate the ferroelectric effect from the electromechanical (EM) response through the use of frequency dependent ac amplitude sweep with combination of hysteresis loops in PFM. Our combined study through experimental and theoretical approaches verifies that this method can be used as a new tool to differentiate the ferroelectric effect from the other factors that contribute to the EM response.

AB - Hysteresis loop analysis via piezoresponse force microscopy (PFM) is typically performed to probe the existence of ferroelectricity at the nanoscale. However, such an approach is rather complex in accurately determining the pure contribution of ferroelectricity to the PFM. Here, we suggest a facile method to discriminate the ferroelectric effect from the electromechanical (EM) response through the use of frequency dependent ac amplitude sweep with combination of hysteresis loops in PFM. Our combined study through experimental and theoretical approaches verifies that this method can be used as a new tool to differentiate the ferroelectric effect from the other factors that contribute to the EM response.

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SN - 2045-2322

VL - 6

JO - Scientific Reports

JF - Scientific Reports

M1 - 30579

ER -

Determination of ferroelectric contributions to electromechanical response by frequency dependent piezoresponse force microscopy

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