Dynamics of Photoinduced Charge-Density-Wave to Metal Phase Transition in K0.3MoO3

A. Tomeljak, H. Schäfer, D. Städter, M. Beyer, K. Biljakovic, and J. Demsar
Phys. Rev. Lett. 102, 066404 – Published 13 February 2009

Abstract

We present the first systematic studies of the photoinduced phase transition from the ground charge density wave (CDW) state to the normal metallic state in the prototype quasi-1D CDW system K0.3MoO3. Ultrafast nonthermal CDW melting is achieved at the absorbed energy density that corresponds to the electronic energy difference between the metallic and CDW states. The results imply that on the subpicosecond time scale when melting and subsequent initial recovery of the electronic order takes place the lattice remains unperturbed.

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  • Received 21 October 2008

DOI:https://doi.org/10.1103/PhysRevLett.102.066404

©2009 American Physical Society

Authors & Affiliations

A. Tomeljak1,2, H. Schäfer1, D. Städter1, M. Beyer1, K. Biljakovic3, and J. Demsar1,2

  • 1Physics Department and Center for Applied Photonics, Universität Konstanz, D-78457, Germany
  • 2Complex Matter Department, Jozef Stefan Institute, SI-1000, Ljubljana, Slovenia
  • 3Institute of Physics, Zagreb, Croatia

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Issue

Vol. 102, Iss. 6 — 13 February 2009

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