title: Identifying the Collective Length in VO2Metal-Insulator Transitions.
abstract: The "collective length" in VO2metal-insulator transitions is identified by controlling nanoscale dopant distribution in thin films. The crossover from the local transition to the collective transition is observed, which originates from the increased instability of the metal-insulator domain boundary. This instability renders the transition collective within the "collective length", which will enable the design of collective electronic devices.
authors.affiliation: Department of Materials Engineering, University of Tokyo, Bunkyo, Tokyo, 113-8656, Japan.
authors.forename: Takeaki
authors.initials: T
authors.lastname: Yajima
authors.affiliation: Department of Materials Engineering, University of Tokyo, Bunkyo, Tokyo, 113-8656, Japan.
authors.forename: Tomonori
authors.initials: T
authors.lastname: Nishimura
authors.affiliation: Department of Materials Engineering, University of Tokyo, Bunkyo, Tokyo, 113-8656, Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Toriumi
keywords: collectivity; domain boundary energy; epitaxial heterostructures; nanoscale phase transition, metal-insulator transitions