skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

This content will become publicly available on May 13, 2020

Title: Polarization-dependent local conductivity and activation energy in KTiOPO 4

Abstract

We study the local conductivity properties of KTiOPO4 using conductive atomic force microscopy in ultrahigh vacuum (UHV). We show that domains with opposite orientations have different conductivity values. We research the temperature dependence of the local conductivity and report a difference in the activation energy of 25% between different domains. Moreover, we show that the local conductivity increases with the number of biased-scans. Lastly, it is found that the domain wall conductivity previously observed at ambient conditions vanishes in UHV. Our results are discussed in terms of the screening effects and surface conditions.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [1]
  1. KTH Royal Inst. of Technology, Stockholm (Sweden)
  2. 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), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; Swedish Research Council (VR); USDOE
OSTI Identifier:
1530083
Alternate Identifier(s):
OSTI ID: 1512340
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 114; Journal Issue: 19; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Lindgren, Gustav, Kalinin, Sergei V., Vasudevan, Rama K., and Canalias, Carlota. Polarization-dependent local conductivity and activation energy in KTiOPO4. United States: N. p., 2019. Web. doi:10.1063/1.5090475.
Lindgren, Gustav, Kalinin, Sergei V., Vasudevan, Rama K., & Canalias, Carlota. Polarization-dependent local conductivity and activation energy in KTiOPO4. United States. doi:10.1063/1.5090475.
Lindgren, Gustav, Kalinin, Sergei V., Vasudevan, Rama K., and Canalias, Carlota. Mon . "Polarization-dependent local conductivity and activation energy in KTiOPO4". United States. doi:10.1063/1.5090475.
@article{osti_1530083,
title = {Polarization-dependent local conductivity and activation energy in KTiOPO4},
author = {Lindgren, Gustav and Kalinin, Sergei V. and Vasudevan, Rama K. and Canalias, Carlota},
abstractNote = {We study the local conductivity properties of KTiOPO4 using conductive atomic force microscopy in ultrahigh vacuum (UHV). We show that domains with opposite orientations have different conductivity values. We research the temperature dependence of the local conductivity and report a difference in the activation energy of 25% between different domains. Moreover, we show that the local conductivity increases with the number of biased-scans. Lastly, it is found that the domain wall conductivity previously observed at ambient conditions vanishes in UHV. Our results are discussed in terms of the screening effects and surface conditions.},
doi = {10.1063/1.5090475},
journal = {Applied Physics Letters},
number = 19,
volume = 114,
place = {United States},
year = {2019},
month = {5}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on May 13, 2020
Publisher's Version of Record

Save / Share: