Phonon Spectra in Pb and ${Pb}_{40}$ ${Tl}_{60}$ Determined by Tunneling and Neutron Scattering

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15 February 1969

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 178 (3) , 897-899
https://doi.org/10.1103/physrev.178.897

Abstract

We report that there is good agreement between the phonon spectrum

F (ω)

for Pb and

{Pb}_{40}

{Tl}_{60}

determined using neutron scattering and the

α^{2} (ω) F (ω)

measured by superconducting tunneling. A direct comparison of the results allows us to estimate the value of the electron-phonon coupling constant

α^{2} (ω)

.

Keywords

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