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Coherent Structural Dynamics and Electronic Correlations during an Ultrafast Insulator-to-Metal Phase Transition in VO2

Kübler, C., Ehrke, H., Huber, Rupert, Lopez, R., Halabica, A., Haglund jun., R. F. and Leitenstorfer, A. (2007) Coherent Structural Dynamics and Electronic Correlations during an Ultrafast Insulator-to-Metal Phase Transition in VO2. Physical Review Letters (PRL) 99 (11), p. 116401.

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Abstract

We directly trace the multi-THz conductivity of VO2 during an insulator-metal transition triggered by a 12-fs light pulse. The femtosecond dynamics of lattice and electronic degrees of freedom are spectrally discriminated. A coherent wave packet motion of V-V dimers at 6 THz modulates the lattice polarizability for approximately 1 ps. In contrast, the electronic conductivity settles to a constant ...

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Item type:Article
Date:2007
Additional Information (public):» This publication has been selected for the Virtual Journal of Ultrafast Science » This publication has been selected for the Virtual Journal of Nanoscale Science and Technology
Institutions:Physics > Institute of Experimental and Applied Physics > Chair Professor Huber > Group Rupert Huber
Identification Number:
ValueType
10.1103/PhysRevLett.99.116401DOI
Classification:
NotationType
71.30.+hPACS
72.80.GaPACS
78.47.+pPACS
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Unknown
Created at the University of Regensburg:Unknown
Item ID:19123
Owner only: item control page

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