Journal
PHYSICS-USPEKHI
Volume 44, Issue 6, Pages 553-570Publisher
TURPION LTD
DOI: 10.1070/PU2001v044n06ABEH000917
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Mechanisms of electron phase separation in manganite-type oxide materials are analyzed using a simple Kondo-lattice model with intersite Coulomb repulsion between electrons. This model predicts the instability of magnetic (or charge) homogeneous ordering toward the formation of droplet structures (magnetic polarons) for a wide parameter range in the phase diagram. Various types of magnetic polarons are examined. The transport properties and noise spectrum of phase-separated materials are also discussed.
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