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Electron-phonon interaction function in the layered dichalcogenide 2Ha-TaSe2

Low Temp. Phys. 35, 539 (2009); doi:10.1063/1.3170929

Issue Date: July 2009

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G. V. Kamarchuk, A. V. Khotkevich, and A. V. Savitskii
B. I. Verkin Institute for Low-Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, pr. Lenina 47, Khar'kov 61103, Ukraine

P. Molinié, A. Leblanc, and E. Falques
Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, CNRS, 2 rue de la Houssinière, BP 32229, 44322 Nantes cedex 3, France
Point-contact spectroscopy is used to investigate experimentally the electron-phonon interaction spectrum in the layered quasi-two-dimensional dichalcogenide 2Ha-TaSe2. The measurements are performed on 2Ha-TaSe2/Cu heterocontacts. The point-contact spectra reflecting the effects of the electron-phonon interaction are recorded in the spectral regime of current flow and delocalization of the electronic states near point contacts for small momentum free-path lengths of electrons. The electron-phonon interaction function in this compound is determined for the first time. Calculations of important integral parameters of the electron-phonon system of the experimental material confirm the good reproducibility of the results. ©2009 American Institute of Physics
History: Submitted 20 February 2009
Permalink: http://link.aip.org/link/?LTPHEG/35/539/1
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KEYWORDS and PACS

Keywords
PACS
  • 63.20.kd
    Phonon-electron interactions
  • 71.38.-k
    Polarons and electron-phonon interactions
  • YEAR: 2009

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1063-777X (print)   1090-6517 (online)
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