Landau model for the phase diagrams of the orthorhombic rare-earth manganites RMnO3 (R = Eu, Gd, Tb, Dy, Ho)

被引：19

作者：

Ribeiro, J. L. ^{[1
]}

Vieira, L. G. ^{[1
]}

机构：

[1] Univ Minho, Ctr Fis, P-4710057 Braga, Portugal

来源：

PHYSICAL REVIEW B | 2010年 / 82卷 / 06期

关键词：

MULTIFERROIC MATERIAL; MAGNETIC-STRUCTURES; CRYSTAL; DIFFRACTION; PEROVSKITES; TRANSITION;

D O I：

10.1103/PhysRevB.82.064410

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The present work aims to describe, within a single phenomenological approach, the specific sequence of phase transitions observed in the rare-earth manganites RMnO3 at zero magnetic field. It is shown that a single integrated description of the temperature versus composition phase diagrams of these compounds and related solid solutions can be obtained within the scope of Landau theory by adopting the so-called type-II description of the modulated phases.

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页数：12

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