Single-Particle Dynamics in the Anderson Lattice

Single-Particle Dynamics in the Anderson Lattice

We present a theory for the single particle dynamics of the U→∞ Anderson lattice using a projection operator which projects out of any operator its exact thermal average in the space of single particle excitations and is capable of handling the complex f statistics properly. It is exact in the large...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics Vol. 26; no. S3-1; p. 463
Main Authors: Fedro, A. J., Dunlap, B. D.
Format: Journal Article
Language:English
Published: 01-01-1987
Online Access:Get full text
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Summary:We present a theory for the single particle dynamics of the U→∞ Anderson lattice using a projection operator which projects out of any operator its exact thermal average in the space of single particle excitations and is capable of handling the complex f statistics properly. It is exact in the large degeneracy limit and gives a dynamically renormalized hybridization and f level energy. In addition, we find self-energy corrections from the on-site c-f exchange and intersite RKKY exchange induced by the correlation which are absent in other truncation treatments and lead to competition between on-site screening and magnetic effects.
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAPS.26S3.463