Measuring the electron–phonon interaction in two-dimensional superconductors with He-atom scattering

Giorgio Benedek, Joseph R. Manson, Salvador Miret-Artés, Adrian Ruckhofer, Wolfgang E. Ernst, Anton Tamtögl*, Jan Peter Toennies

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Helium-atom scattering (HAS) spectroscopy from conducting surfaces has been shown to provide direct information on the electron–phonon interaction, more specifically the mass-enhancement factor λ from the temperature dependence of the Debye–Waller exponent, and the mode-selected electron–phonon coupling constants λ from the inelastic HAS intensities from individual surface phonons. The recent applications of the method to superconducting ultra-thin films, quasi-1D high-index surfaces, and layered transition-metal and topological pnictogen chalcogenides is briefly reviewed.

Original languageEnglish
Article number79
Pages (from-to)1-22
Number of pages22
JournalCondensed Matter
Issue number4
Publication statusPublished - 3 Dec 2020


  • Charge density wave
  • Electron-phonon interaction
  • Helium atom scattering
  • Superconductivity
  • Topological insulator
  • Topological materials
  • Transition metal dichalcogenide

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Fields of Expertise

  • Advanced Materials Science


  • NAWI Graz


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