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Calculated Fermi Surface Characteristics of the Noble Metals
Author(s) -
Graefenstein J.,
Mertig I.,
Mrosan E.,
Antonov V. N.,
Antonov Vl. N.
Publication year - 1988
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.2221470215
Subject(s) - fermi surface , condensed matter physics , effective mass (spring–mass system) , anisotropy , cyclotron , cyclotron resonance , electron , fermi energy , physics , quantum oscillations , de haas–van alphen effect , renormalization , phonon , fermi gas , magnetic field , fermi gamma ray space telescope , chemistry , quantum mechanics , superconductivity
Some Fermi surface characteristics are calculated like the optical mass, the cyclotron masses, and the Fermi velocities of the noble metals. The underlying selfconsistent energy bands are obtained by means of a nonrelativistic KKR method for Cu and Ag and by means of a relativistic LMTO method for Au. The estimated optical masses agree satisfactorily with data from optical experiments. Taking into account the electron–phonon renormalization of the experimental data, the calculated cyclotron masses and anisotropic Fermi velocities agree well with de Haas‐van Alphen and magnetic field induced surface state resonance results. From the comparison of the theoretically and experimentally derived Fermi velocities the anisotropy of the electron‐phonon enhancement factor λ( k ) is determined for Cu and Au.