Polarization-dependent local conductivity and activation energy in KTiOPO4

Lindgren, Gustav; Kalinin, Sergei V.; Vasudevan, Rama K.; Canalias, Carlota

doi:10.1063/1.5090475

Title: Polarization-dependent local conductivity and activation energy in KTiOPO₄

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:

^[1];

^[2];

^[1]

KTH Royal Inst. of Technology, Stockholm (Sweden)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Publication Date:: Mon May 13 00:00:00 EDT 2019

Research Org.:: Oak Ridge National Laboratory (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.

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                    Lindgren, Gustav, Kalinin, Sergei V., Vasudevan, Rama K., & Canalias, Carlota. Polarization-dependent local conductivity and activation energy in KTiOPO4.  United States.  https://doi.org/10.1063/1.5090475

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                    Lindgren, Gustav, Kalinin, Sergei V., Vasudevan, Rama K., and Canalias, Carlota. Mon .  
"Polarization-dependent local conductivity and activation energy in KTiOPO4".  United States.  https://doi.org/10.1063/1.5090475.  https://www.osti.gov/servlets/purl/1530083.

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@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         = {Mon May 13 00:00:00 EDT 2019},

  month        = {Mon May 13 00:00:00 EDT 2019}

}

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Works referenced in this record:

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Title: Polarization-dependent local conductivity and activation energy in KTiOPO4

Abstract

Citation Formats

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Title: Polarization-dependent local conductivity and activation energy in KTiOPO₄

Domains in Ferroic Crystals and Thin Films
book, January 2010

Free-electron gas at charged domain walls in insulating BaTiO3
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Tunable Metallic Conductance in Ferroelectric Nanodomains
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Sheet superconductivity in : crystal structure of the tetragonal matrix
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Ionic Conductivity of Quasi-One-Dimensional Superionic Conductor KTiOPO ₄ (KTP) Single Crystal
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Crystal structures of RbTiOAsO4, KTiO(P0.58,As0.42)O4, RbTiOPO4 and (Rb0.465,K0.535)TiOPO4, and analysis of pseudosymmetry in crystals of the KTiOPO4 family
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