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Title: Interplay between Ferroelastic and Metal-Insulator Phase Transitions in Strained Quasi-Two-Dimensional VO2 Nanoplatelets

Abstract

Formation of ferroelastic twin domains in VO_2 nanosystems can strongly affect local strain distributions, and hence couple to the strain-controlled metal-insulator transition. Here we report polarized-light optical and scanning microwave microscopy studies of interrelated ferroelastic and metal-insulator transitions in single-crystalline vanadium dioxide (VO_2) quasi-two-dimensional (quasi-2D) nanoplatelets (NPls). In contrast to quasi-1D single-crystalline nanobeams, the geometric frustration results in emergence of several possible families of ferroelastic domains in NPls, thus allowing systematic studies of strain-controlled transitions in the presence of geometrical frustration. We demonstrate possibility of controlling the ferroelastic domain population by the strength of the NPl-substrate interaction, mechanical stress, and by the NPl lateral size. Ferroelastic domain species and domain walls are identified based on standard group-theoretical considerations. Using variable temperature microscopy, we imaged the development of domains of metallic and semiconducting phases during the metal-insulator phase transition and non-trivial strain-driven reentrant domain formation. A long-range reconstruction of ferroelastic structures accommodating metal-insulator domain formation has been observed. These studies illustrate that complete picture of the phase transitions in single-crystalline and disordered VO_2 structures can be drawn only if both ferroelastic and metal-insulator strain effects are taken into consideration and understood.

Authors:
 [1];  [2];  [3];  [1];  [1];  [1];  [1];  [4];  [1];  [1]
  1. ORNL
  2. Southern Illinois University
  3. University of Picardie Jules Verne, Amiens, France
  4. Asylum Research, Santa Barbara, CA
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:
981780
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Nano Letters
Additional Journal Information:
Journal Volume: 10; Journal Issue: 6; Journal ID: ISSN 1530-6984
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; VANADIUM OXIDES; NANOSTRUCTURES; STRAINS; DOMAIN STRUCTURE; PHASE TRANSFORMATIONS; METALS; ELECTRICAL INSULATORS

Citation Formats

Tselev, Alexander, Strelcov, Evgheni, Luk'yanchuk, Prof. Igor A., Ivanov, Ilia N, Budai, John D, Tischler, Jonathan Zachary, Jones, Keith M, Proksch, Roger, Kalinin, Sergei V, and Kolmakov, Andrei. Interplay between Ferroelastic and Metal-Insulator Phase Transitions in Strained Quasi-Two-Dimensional VO2 Nanoplatelets. United States: N. p., 2010. Web. doi:10.1021/nl1008794.
Tselev, Alexander, Strelcov, Evgheni, Luk'yanchuk, Prof. Igor A., Ivanov, Ilia N, Budai, John D, Tischler, Jonathan Zachary, Jones, Keith M, Proksch, Roger, Kalinin, Sergei V, & Kolmakov, Andrei. Interplay between Ferroelastic and Metal-Insulator Phase Transitions in Strained Quasi-Two-Dimensional VO2 Nanoplatelets. United States. https://doi.org/10.1021/nl1008794
Tselev, Alexander, Strelcov, Evgheni, Luk'yanchuk, Prof. Igor A., Ivanov, Ilia N, Budai, John D, Tischler, Jonathan Zachary, Jones, Keith M, Proksch, Roger, Kalinin, Sergei V, and Kolmakov, Andrei. 2010. "Interplay between Ferroelastic and Metal-Insulator Phase Transitions in Strained Quasi-Two-Dimensional VO2 Nanoplatelets". United States. https://doi.org/10.1021/nl1008794.
@article{osti_981780,
title = {Interplay between Ferroelastic and Metal-Insulator Phase Transitions in Strained Quasi-Two-Dimensional VO2 Nanoplatelets},
author = {Tselev, Alexander and Strelcov, Evgheni and Luk'yanchuk, Prof. Igor A. and Ivanov, Ilia N and Budai, John D and Tischler, Jonathan Zachary and Jones, Keith M and Proksch, Roger and Kalinin, Sergei V and Kolmakov, Andrei},
abstractNote = {Formation of ferroelastic twin domains in VO_2 nanosystems can strongly affect local strain distributions, and hence couple to the strain-controlled metal-insulator transition. Here we report polarized-light optical and scanning microwave microscopy studies of interrelated ferroelastic and metal-insulator transitions in single-crystalline vanadium dioxide (VO_2) quasi-two-dimensional (quasi-2D) nanoplatelets (NPls). In contrast to quasi-1D single-crystalline nanobeams, the geometric frustration results in emergence of several possible families of ferroelastic domains in NPls, thus allowing systematic studies of strain-controlled transitions in the presence of geometrical frustration. We demonstrate possibility of controlling the ferroelastic domain population by the strength of the NPl-substrate interaction, mechanical stress, and by the NPl lateral size. Ferroelastic domain species and domain walls are identified based on standard group-theoretical considerations. Using variable temperature microscopy, we imaged the development of domains of metallic and semiconducting phases during the metal-insulator phase transition and non-trivial strain-driven reentrant domain formation. A long-range reconstruction of ferroelastic structures accommodating metal-insulator domain formation has been observed. These studies illustrate that complete picture of the phase transitions in single-crystalline and disordered VO_2 structures can be drawn only if both ferroelastic and metal-insulator strain effects are taken into consideration and understood.},
doi = {10.1021/nl1008794},
url = {https://www.osti.gov/biblio/981780}, journal = {Nano Letters},
issn = {1530-6984},
number = 6,
volume = 10,
place = {United States},
year = {2010},
month = {1}
}