Inhomogeneous charge distributions and phase separation in manganites

被引：0

作者：

Kagan, M.Yu.

Kugel, K.I.

机构：

[1] P.L. Kapitza Inst. for Phys. Prob., Russian Academy of Sciences, ul. Kosygina 2, 117334 Moscow, Russia

[2] Inst. Theor. Appl. Electrodynamics, Russian Academy of Sciences, Izhorskaya ul. 13/19, 127412 Moscow, Russia

来源：

Uspekhi Fizicheskikh Nauk | 2001年 / 171卷 / 06期

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摘要：

Mechanisms of electron phase separation in manganite-type oxide materials are analyzed using a simple Kondo-lattice model with intersite Coulomb repulsion between electrons. The model predicts the instability of magnetic (or charge) homogeneous ordering against the formation of droplet structures (magnetic polarons) for much of the phase diagram. Various types of magnetic polarons are studied. The transport characteristics and noise spectrum of phase-separated materials are also discussed.

引用

页码：595 / 596

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