Heterogeneous nucleation and growth dynamics in the light-induced phase transition in vanadium dioxide
Journal Article
·
· Journal of Physics. Condensed Matter
- Univ. of Alabama at Birmingham, Birmingham, AL (United States)
- Vanderbilt Univ., Nashville, TN (United States)
- Korea Institute of Science and Technology (KIST), Seoul (Republic of Korea); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- 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
Cited by: 15 works
Citation information provided by
Web of Science
Web of Science
Ultrafast structural dynamics of
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journal | August 2017 |
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