Effective temperature scattering matrix and kinematic mechanism of cooper instability in antiferromagnetic rare-earth intermetallides

An effective temperature-dependent scattering matrix for a localized subsystem is obtained in the periodic Anderson model by summing itinerant variables in the diagrammatic series of perturbation theory. The effective interaction that occurs in this case can lead to an antiferromagnetic phase, a sup...

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Bibliographic Details
Published in:Bulletin of the Russian Academy of Sciences. Physics 2015-06, Vol.79 (6), p.746-748
Main Authors: Val’kov, V. V., Zlotnikov, A. O., Val’kova, T. A.
Format: Article
Language:English
Subjects:
Antiferromagnetism
Hadrons
Heavy Ions
Intermetallic compounds
Nuclear Physics
Perturbation methods
Perturbation theory
Physics
Physics and Astronomy
Rare earth elements
Scattering
Stability
Superconductivity
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Summary:An effective temperature-dependent scattering matrix for a localized subsystem is obtained in the periodic Anderson model by summing itinerant variables in the diagrammatic series of perturbation theory. The effective interaction that occurs in this case can lead to an antiferromagnetic phase, a superconducting phase, and the phase of coexisting superconductivity and antiferromagnetism observed in heavy-fermion intermetallic compounds.
ISSN:1062-8738
1934-9432
DOI:10.3103/S1062873815060349