Origin of the Electron-Phonon Interaction of Topological Semimetal Surfaces Measured with Helium Atom Scattering

A. Ruckhofer; A. Tamt\"ogl; G. Benedek; J. R. Manson; S. Miret-Art\'es; W. E. Ernst

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Origin of the Electron-Phonon Interaction of Topological Semimetal Surfaces Measured with Helium Atom Scattering

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arxiv 2001.11795 v1 pith:RJU2C3Y5 submitted 2020-01-31 cond-mat.mtrl-sci cond-mat.mes-hallphysics.chem-ph

G. Benedek , S. Miret-Artés , J. R. Manson , A. Ruckhofer , W. E. Ernst , A. Tamtögl This is my paper · ORCID

classification cond-mat.mtrl-scicond-mat.mes-hallphysics.chem-ph

keywords atomscatteringsurfaceselectron-phononinteractionlambdasemimetaltopological

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abstract

He atom scattering has been demonstrated to be a sensitive probe of the electron-phonon interaction parameter $\lambda$ at metal and metal-overlayer surfaces. Here it is shown that the theory linking $\lambda$ to the thermal attenuation of atom scattering spectra (the Debye-Waller factor), can be applied to topological semimetal surfaces, like the quasi-one dimensional charge-density-wave system Bi(114) and the layered pnictogen chalcogenides.

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