Electron correlations

Document Type

Article

Publication Date

1-1-1998

Abstract

We present and discuss electronic correlation effects in slightly doped (Formula presented) for which the concentrations of magnetic centers and itinerant electrons are low and approximately equal, and compare its properties with those of (Formula presented) and (Formula presented). For (Formula presented) the low-temperature conductivity σ exceeds (Formula presented) and (Formula presented) by more than two orders of magnitude and the electronic specific heat reveals a strong enhancement of the electronic density of states at the Fermi level (Formula presented), not observed in the concentrated compound (Formula presented). © 1998 The American Physical Society.

Publication Source (Journal or Book title)

Physical Review B - Condensed Matter and Materials Physics

First Page

10644

Last Page

10647

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