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Theory of the Lattice Dynamics of Strong Coupling Systems in the Rigid Muffin Tin Approximation
Abstract At about the time of the first conference in this series it began to be clear that high temperature superconductivity in d- and f-band metals was closely related to anomalies in the phonon spectra, and that these phenomena often occurred near (in some sense) lattice instabilities. The interrelations of these phenomena are undoubtedly obscurred by a lack of a theoretical understanding of the phonon spectra. Although a rigorous theory of lattice dynamics is available, the complications inherent in the formulation make computation impractical, and progress toward a first principles understanding of phonon spectra has been slow indeed. This observation, together with the potential rewards to be expected, provide ample excuse for a reformulation of the theory of lattice dynamics. In this paper we discuss a formulation which includes among its virtues the feasibility of numerical evaluation.
Theory of the Lattice Dynamics of Strong Coupling Systems in the Rigid Muffin Tin Approximation
Abstract At about the time of the first conference in this series it began to be clear that high temperature superconductivity in d- and f-band metals was closely related to anomalies in the phonon spectra, and that these phenomena often occurred near (in some sense) lattice instabilities. The interrelations of these phenomena are undoubtedly obscurred by a lack of a theoretical understanding of the phonon spectra. Although a rigorous theory of lattice dynamics is available, the complications inherent in the formulation make computation impractical, and progress toward a first principles understanding of phonon spectra has been slow indeed. This observation, together with the potential rewards to be expected, provide ample excuse for a reformulation of the theory of lattice dynamics. In this paper we discuss a formulation which includes among its virtues the feasibility of numerical evaluation.
Theory of the Lattice Dynamics of Strong Coupling Systems in the Rigid Muffin Tin Approximation
Pickett, W. E. (author) / Gyorffy, B. L. (author)
1976-01-01
17 pages
Article/Chapter (Book)
Electronic Resource
English
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