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Title: Local probing of relaxation time distributions in ferroelectric polymer nanomesas: Time-resolved piezoresponse force spectroscopy and spectroscopic imaging

Abstract

Time-resolved piezoresponse force spectroscopy (TR-PFS) and spectroscopic imaging are developed to probe the spatial variability of relaxation behavior in nanoscale ferroelectric materials and structures. TR-PFS was applied to study polarization dynamics in polyvinylidine fluoride and trifluoroethylene nanomesas. We demonstrate that polarization relaxation in ferroelectric polymers is slow even on the 10 nm length scale of piezoresponse force microscopy (PFM) signal generation. Furthermore, the relaxation times are found to be nonuniform within the nanomesa, indicative of a complex internal structure. The applicability of TR-PFM for studies of polarization dynamics in ferroelectric polymers and relaxors is discussed.

Authors:
 [1];  [2];  [3];  [3];  [4]
  1. University College, Dublin
  2. ORNL
  3. University of Nebraska, Lincoln
  4. Oak Ridge National Laboratory (ORNL)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1115351
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 92; Journal Issue: 23; Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English

Citation Formats

Rodriguez, Brian, Jesse, Stephen, Kim, J., Ducharme, S., and Kalinin, Sergei. Local probing of relaxation time distributions in ferroelectric polymer nanomesas: Time-resolved piezoresponse force spectroscopy and spectroscopic imaging. United States: N. p., 2008. Web. doi:10.1063/1.2942390.
Rodriguez, Brian, Jesse, Stephen, Kim, J., Ducharme, S., & Kalinin, Sergei. Local probing of relaxation time distributions in ferroelectric polymer nanomesas: Time-resolved piezoresponse force spectroscopy and spectroscopic imaging. United States. https://doi.org/10.1063/1.2942390
Rodriguez, Brian, Jesse, Stephen, Kim, J., Ducharme, S., and Kalinin, Sergei. 2008. "Local probing of relaxation time distributions in ferroelectric polymer nanomesas: Time-resolved piezoresponse force spectroscopy and spectroscopic imaging". United States. https://doi.org/10.1063/1.2942390.
@article{osti_1115351,
title = {Local probing of relaxation time distributions in ferroelectric polymer nanomesas: Time-resolved piezoresponse force spectroscopy and spectroscopic imaging},
author = {Rodriguez, Brian and Jesse, Stephen and Kim, J. and Ducharme, S. and Kalinin, Sergei},
abstractNote = {Time-resolved piezoresponse force spectroscopy (TR-PFS) and spectroscopic imaging are developed to probe the spatial variability of relaxation behavior in nanoscale ferroelectric materials and structures. TR-PFS was applied to study polarization dynamics in polyvinylidine fluoride and trifluoroethylene nanomesas. We demonstrate that polarization relaxation in ferroelectric polymers is slow even on the 10 nm length scale of piezoresponse force microscopy (PFM) signal generation. Furthermore, the relaxation times are found to be nonuniform within the nanomesa, indicative of a complex internal structure. The applicability of TR-PFM for studies of polarization dynamics in ferroelectric polymers and relaxors is discussed.},
doi = {10.1063/1.2942390},
url = {https://www.osti.gov/biblio/1115351}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 23,
volume = 92,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 2008},
month = {Tue Jan 01 00:00:00 EST 2008}
}