Strain-induced self organization of metal-insulator domains in single-crystalline VO 2 nanobeams

Junqiao Wu, Qian Gu, Beth S. Guiton, Nathalie P. De Leon, Lian Ouyang, Hongkun Park

Research output: Contribution to journalArticle

233 Scopus citations

Abstract

We investigated the effect of substrate-induced strain on the metal-insulator transition (MIT) in single-crystalline VO 2 nanobeams. A simple nanobeam-substrate adhesion leads to uniaxial strain along the nanobeam length because of the nanobeam's unique morphology. The strain changes the relative stability of the metal (M) and insulator (I) phases and leads to spontaneous formation of periodic, alternating M-I domain patterns during the MIT. The spatial periodicity of the M-I domains can be modified by changing the nanobeam thickness and the Young's modulus of the substrate.

Original languageEnglish (US)
Pages (from-to)2313-2317
Number of pages5
JournalNano Letters
Volume6
Issue number10
DOIs
StatePublished - Oct 2006

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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