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Perturbative expansions of the half-filled Kondo lattice

✍ Scribed by J. Pérez-Conde; Pierre Pfeuty


Book ID
104926799
Publisher
Springer US
Year
1995
Tongue
English
Weight
126 KB
Volume
99
Category
Article
ISSN
0022-2291

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Green's function approach to half-filled
✍ Ryousuke Shiina; Chikara Ishii 📂 Article 📅 1993 🏛 Springer US 🌐 English ⚖ 392 KB

The ground state energy, quasiparticle excitation spectrum and distribution function are studied in terms of the Schuh equation for the carrier self-energy, derived by decoupling method The results are compared in detail with those obtained in the Gutzwiller approximation. It is shown that these dif