Premium
Phonon anomalies in copper
Author(s) -
Weiss L.,
Eschrig H.
Publication year - 1982
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221140215
Subject(s) - anomaly (physics) , fermi surface , condensed matter physics , copper , fermi gamma ray space telescope , position (finance) , phonon , plane (geometry) , surface (topology) , space (punctuation) , fermi level , physics , materials science , geometry , quantum mechanics , mathematics , superconductivity , electron , linguistics , philosophy , finance , economics , metallurgy
Phonon anomalies in copper are investigated. With the shape of the Fermi surface obtained from self‐consistent band structure calculations various kinds of anomalies are predicted in the (110)‐plane of the wave‐vector space. Some of them are investigated experimentally and the measured anomalies confirm the theoretical predictions in position and shape. Especially, an anomaly corresponding to the touching from inside of a Fermi surface with its shifted copy predicted by Kaganov et al. is observed for the first time. The experimental results are compared with earlier measurements of other authors.