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Title: Heterogeneous nucleation and growth dynamics in the light-induced phase transition in vanadium dioxide

Journal Article · · Journal of Physics. Condensed Matter
 [1];  [2];  [3];  [2];  [4];  [2];  [1]
  1. Univ. of Alabama at Birmingham, Birmingham, AL (United States)
  2. Vanderbilt Univ., Nashville, TN (United States)
  3. Korea Institute of Science and Technology (KIST), Seoul (Republic of Korea); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Here we report on ultrafast optical investigations of the light-induced insulator-to-metal phase transition in vanadium dioxide with controlled disorder generated by substrate mismatch. These results reveal common dynamics of this optically-induced phase transition that are independent of this disorder. Lastly, above the fluence threshold for completing the transition to the rutile crystalline phase, we find a common time scale, independent of sample morphology, of 40.5 ± 2 ps that is consistent with nucleation and growth dynamics of the R phase from the parent M1 ground state.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
ECS-0801985; P200A090143; AC52-06NA25396; FG02-01ER4591
OSTI ID:
1259959
Alternate ID(s):
OSTI ID: 1240027
Report Number(s):
LA-UR-16-20958
Journal Information:
Journal of Physics. Condensed Matter, Vol. 28, Issue 12; ISSN 0953-8984
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

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Cited By (1)

Ultrafast structural dynamics of VO 2 journal August 2017