EPJ Web of Conferences
Volume 41, 2013XVIIIth International Conference on Ultrafast Phenomena
|Number of page(s)||3|
|Section||Correlated Electron Systems, Magnetization, and Spin Dynamics|
|Published online||13 March 2013|
Ultrafast Dynamics of the VO2 Insulator-to-Metal Transition Observed by Nondegenerate Pump-Probe Spectroscopy
1 University of Alabama at Birmingham, Birmingham, Alabama
2 Vanderbilt University, Nashville, Tennessee
3 Los Alamos National Laboratory, Center for Integrated Nanotechnology, Los Alamos, New Mexico
Non-degenerate pump (1.5 eV)-probe (0.4 eV) transmission spectroscopy on vanadium dioxide films grown on glass and three different sapphire substrates shows systematic variations with substrate that correlate with VO2 grain size and laser fluence. Temperature dependent measurements showed changes in the electronic response that is proportional to the metallic fraction.
© Owned by the authors, published by EDP Sciences, 2013
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