title: Local temperature redistribution and structural transition during joule-heating-driven conductance switching in VO2.
abstract: Joule-heating induced conductance-switching is studied in VO2 , a Mott insulator. Complementary in situ techniques including optical characterization, blackbody microscopy, scanning transmission X-ray microscopy (STXM) and numerical simulations are used. Abrupt redistribution in local temperature is shown to occur upon conductance-switching along with a structural phase transition, at the same current.
authors.affiliation: Hewlett-Packard Laboratories, 1501 Page Mill Rd, Palo Alto, CA, 94304, USA; Stanford University, Stanford, CA, 94305, USA.
authors.forename: Suhas
authors.initials: S
authors.lastname: Kumar
authors.forename: Matthew D
authors.initials: MD
authors.lastname: Pickett
authors.forename: John Paul
authors.initials: JP
authors.lastname: Strachan
authors.forename: Gary
authors.initials: G
authors.lastname: Gibson
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Nishi
authors.forename: R Stanley
authors.initials: RS
authors.lastname: Williams
keywords: joule-heating; memristors; mott transition; peierls transition; vanadium dioxide