Numéro |
J. Phys. Colloques
Volume 42, Numéro C6, Décembre 1981
International Conference on Phonon Physics
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Page(s) | C6-389 - C6-391 | |
DOI | https://doi.org/10.1051/jphyscol:19816113 |
J. Phys. Colloques 42 (1981) C6-389-C6-391
DOI: 10.1051/jphyscol:19816113
NUCLEAR ACOUSTIC RESONANCE INVESTIGATIONS OF THE LONGITUDINAL AND TRANSVERSE ELECTRON-LATTICE INTERACTION IN TRANSITION METALS AND ALLOYS
V. Müller1, G. Schanz2, E.-J. Unterhorst2 et D. Maurer21 Freie Universität Berlin, Fachbereich Physik, Königin-Luise-Str. 28-30, D-1000 Berlin 33, Germany
2 Freie Universität Berlin, Fachbereich Physik, Königin-Luise-Str.28-30, D-1000 Berlin 33, Germany
Abstract
In metals the conduction electrons contribute significantly to the acoustic-wave-induced electric-field-gradient-tensor (DEFG) at the nuclear positions. Since nuclear electric quadrupole coupling to the DEFG is sensitive to acoustic shear modes only, nuclear acoustic resonance (NAR) is a particularly useful tool in studying the coupling of electrons to shear modes without being affected by volume dilatations. By extending previous NAR measurements in Nb, Mo and Ta to superconducting alloys Nb1-xMox it will be shown that the combination of NAR experiments with high-pressure Mössbauer isomer-shift measurements is of interest in a deeper understanding of the coupling of shear modes and volume dilatations to s- and d-electrons in transition metals.