An unexpected temperature dependence of the phonon peak intensity in tantalum, as measured by neutron scattering, is observed between 1.2 and 6 K, that is, in a temperature range where the phonon self-energy is dominated by the electron-phonon interaction. A possible relation between the observed behavior of the phonon intensity and the results of a tunneling experiment is presented. Possible sources of the anomalous behavior presently observed are also considered.
Temperature dependence of phonon intensities in tantalum below 4.2 K
SACCHETTI, Francesco;PETRILLO, Caterina;
1994
Abstract
An unexpected temperature dependence of the phonon peak intensity in tantalum, as measured by neutron scattering, is observed between 1.2 and 6 K, that is, in a temperature range where the phonon self-energy is dominated by the electron-phonon interaction. A possible relation between the observed behavior of the phonon intensity and the results of a tunneling experiment is presented. Possible sources of the anomalous behavior presently observed are also considered.File in questo prodotto:
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