Isostructural elemental crystals in the presence of hot carriers

Isabel Klett, Tobias Zier, Baerbel Rethfeld, Martin E. Garcia, and Eeuwe S. Zijlstra
Phys. Rev. B 91, 144303 – Published 13 April 2015

Abstract

A theoretical comparison of changes in the phonon band structures and the lattice dynamics of diamond-type carbon, silicon, and germanium due to the presence of hot electrons and holes, which can be induced by a femtosecond-laser pulse, is presented. Our results indicate that lighter elements are more resilient to femtosecond-laser excitation than heavier ones. We discuss how this is consistent with a richer structural response of light solids, including the possibility of femtosecond-laser-triggered solid-to-solid structural changes.

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  • Received 15 January 2015
  • Revised 11 March 2015

DOI:https://doi.org/10.1103/PhysRevB.91.144303

©2015 American Physical Society

Authors & Affiliations

Isabel Klett1, Tobias Zier2, Baerbel Rethfeld1, Martin E. Garcia2, and Eeuwe S. Zijlstra2,*

  • 1Department of Physics and OPTIMAS Research Center, Technical University of Kaiserslautern, Erwin Schroedinger Str. 46, 67663 Kaiserslautern, Germany
  • 2Theoretische Physik, Universität Kassel and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), Heinrich-Plett-Str. 40, 34132 Kassel, Germany

  • *zijlstra@uni-kassel.de

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Vol. 91, Iss. 14 — 1 April 2015

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