Peculiarities in low temperature properties of doped manganites A1-xBxMnO3

被引：28

作者：

Dzero, MO ^{[1
]}

Gor'kov, LP

Kresin, VZ

机构：

[1] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA

[2] Russian Acad Sci, LD Landau Theoret Phys Inst, Moscow 117334, Russia

[3] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

来源：

EUROPEAN PHYSICAL JOURNAL B | 2000年 / 14卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1007/s100510051054

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The phase diagram and low temperature properties of the doped manganites A(1-x)B(x)MnO(3) are discussed for the concentrations x less than or equal to 0.4. The transition from insulating antiferromagnetic to metallic ferromagnetic state at x(cr) similar or equal to 0.16 is treated by means of percolation theory. The unifying description of insulating and metallic states is presented. The undoped manganite is a band insulator consisting of ferromagnetic layers, which are coupled antiferromagnetically along the c direction with a low Neel temperature. The metallic phase can be described by the two-band Fermi liquid picture. The behavior of conductivity, spin wave excitations, etc. is analyzed and the comparison with experimental data is carried out.

引用

页码：459 / 471

页数：13

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