A local moment approach to magnetic impurities in gapless Fermi systems
A local moment approach is developed for single-particle excitations of a symmetric Anderson impurity model (AIM) with a soft-gap hybridization vanishing at the Fermi level: Δ I α |ω| r, with r > 0. Local moments are introduced explicitly from t...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2000
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