On-Demand Nanoscale Manipulations of Correlated Oxide Phases

Dustin Schrecongost, Mina Aziziha, Hai Tian Zhang, I. Cheng Tung, Joseph Tessmer, Weitao Dai, Qiang Wang, Roman Engel-Herbert, Haidan Wen, Yoosuf N. Picard, Cheng Cen

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6 Scopus citations


Controlling material properties at the nanoscale is a critical enabler of high performance electronic and photonic devices. A prototypical material example is VO2, where a structural phase transition in correlation with dramatic changes in resistivity, optical response, and thermal properties demonstrates particular technological importance. While the phase transition in VO2 can be controlled at macroscopic scales, reliable and reversible nanoscale control of the material phases has remained elusive. Here, reconfigurable nanoscale manipulations of VO2 from the pristine monoclinic semiconducting phase to either a stable monoclinic metallic phase, a metastable rutile metallic phase, or a layered insulating phase using an atomic force microscope is demonstrated at room temperature. The capability to directly write and erase arbitrary 2D patterns of different material phases with distinct optical and electrical properties builds a solid foundation for future reprogrammable multifunctional device engineering.

Original languageEnglish (US)
Article number1905585
JournalAdvanced Functional Materials
Issue number49
StatePublished - Dec 1 2019

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics


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