scholarly journals Material properties particularly suited to be measured with helium scattering: selected examples from 2D materials, van der Waals heterostructures, glassy materials, catalytic substrates, topological insulators and superconducting radio frequency materials

2021 ◽  
Vol 23 (13) ◽  
pp. 7653-7672
Author(s):  
Bodil Holst ◽  
Gil Alexandrowicz ◽  
Nadav Avidor ◽  
Giorgio Benedek ◽  
Gianangelo Bracco ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Topological Insulator ◽  
Material Properties ◽  
2D Materials ◽  
Coupling Constant ◽  
Phonon Coupling ◽  
Electron Phonon Coupling ◽  
Superconducting Radio Frequency ◽  
Glassy Materials ◽  
Helium Scattering

This paper presents material properties particularly suited to be measured with helium scattering techniques. Below a specific science case example illustrating the measurement of the electron–phonon coupling constant λ on a topological insulator surface.

scholarly journals Estimation of electron-phonon coupling constant in Ba1-xKxBiO3

2020 ◽  
Vol 1686 ◽  
pp. 012049
Author(s):  
Alexander E Lukyanov ◽  
Vyacheslav D Neverov ◽  
Andrey V Krasavin ◽  
Alexey P Menushenkov
Keyword(s):  
Coupling Constant ◽  
Phonon Coupling ◽  
Electron Phonon Coupling

scholarly journals Determination of the electron–phonon coupling constant in tungsten

2014 ◽  
Vol 105 (2) ◽  
pp. 023112 ◽  
Author(s):  
Szymon L. Daraszewicz ◽  
Yvelin Giret ◽  
Hiroshi Tanimura ◽  
Dorothy M. Duffy ◽  
Alexander L. Shluger ◽  
...  
Keyword(s):  
Coupling Constant ◽  
Phonon Coupling ◽  
Electron Phonon Coupling

THEORETICAL ASPECTS OF THE FIELD INDUCED SUPERCONDUCTIVITY IN POLYACENES AND C60

2002 ◽  
Vol 16 (11n12) ◽  
pp. 1547-1551
Author(s):  
S.-L. DRECHSLER ◽  
G. PAASCH ◽  
J. MÁLEK ◽  
S. V. SHULGA ◽  
H. ESCHRIG ◽  
...  
Keyword(s):  
Tight Binding ◽  
Band Structure Calculation ◽  
Full Potential ◽  
Coupling Constant ◽  
Phonon Coupling ◽  
Critical Temperatures ◽  
Binding Model ◽  
Electron Phonon Coupling ◽  
Strong Coulomb ◽  
Experimental Values

The electronic structure and the superconductivity in field-doped polyacenes are considered. Within a modified Thomas–Fermi approach for typical experimental values of the surface charge density the injected charge is confined to a monolayer. The electron–phonon coupling constant for internal modes λintra is estimated using the work of Devos and Lanoo (Ref. 4) and the density of states N(0) estimated from a 2D tight-binding model derived from a full potential LDA band structure calculation for bulk anthracene. The empirical values of the Coulomb pseudopotentials are significantly enhanced. The strong Coulomb interaction is considered as a key quantity which determines the large differences in the critical temperatures achieved for n-doped polyacenes and C 60.

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