dc.contributor.authorLourembam, James
dc.contributor.authorSrivastava, Amar
dc.contributor.authorLa-o-vorakiat, Chan
dc.contributor.authorCheng, Liang
dc.contributor.authorVenkatesan, T.
dc.contributor.authorChia, Elbert Ee Min
dc.identifier.citationLourembam, J., Srivastava, A., La-o-vorakiat, C., Cheng, L., Venkatesan, T., & Chia, E. E. M. (2016). Evidence for photoinduced insulator-to-metal transition in B-phase vanadium dioxide. Scientific Reports, 6, 25538-. doi:10.1038/srep25538en_US
dc.description.abstractUltrafast optical studies have been performed on epitaxial films of the novel B-phase of vanadium dioxide using temperature-dependent optical pump-probe technique. Signature of temperature-driven metal-to-insulator transition was distinctly observed in the ultrafast dynamics — the insulating phase showed two characteristic electronic relaxation times while the metallic phase showed only one. Beyond a threshold value of the pump fluence, the insulating state collapses into a ‘metallic-like’ phase which can be further subdivided into two regimes according to the lengths of the fast characteristic time. The first regime can be explained by lattice heating due to the optical pump; the other cannot be accounted by simple lattice heating effects alone, and thus offers evidence for a true photoinduced phase transition.en_US
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en_US
dc.description.sponsorshipMOE (Min. of Education, S’pore)en_US
dc.format.extent7 p.en_US
dc.relation.ispartofseriesScientific Reportsen_US
dc.rights© 2016 The Authors (Nature Publishing Group). This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/en_US
dc.subjectMetal-insulator Transitionen_US
dc.subjectVanadium Dioxideen_US
dc.titleEvidence for photoinduced insulator-to-metal transition in B-phase vanadium dioxideen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.description.versionPublished versionen_US

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