Landau model for the phase diagrams of the orthorhombic rare-earth manganites RMnO3

Abstract

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.

37 pages, 7 figures, 4 tables

References in corpus (14)

• Spin current and magneto-electric effect in non-collinear magnets
• Role of the Dzyaloshinskii-Moriya interaction in multiferroic perovskites
• Magnetically driven ferroelectric order in Ni${}_3$V${}_2$O${}_8$
• Ferroelectricity in the Magnetic E-Phase of Orthorhombic Perovskites
• Ferroelectric polarization flop in a frustrated magnet MnWO${}_4$ induced by magnetic fields
• Collinear-to-Spiral Spin Transformation without Changing Modulation Wavelength upon Ferroelectric Transition in Tb1-xDyxMnO3
• A New Multiferroic Material: MnWO4
• Erratum: Landau Analysis of the Symmetry of the Magnetic Structure and Magnetoelectric Interaction in Multiferroics [Phys. Rev. B 76, 05447 (2007)]
• Magnetic field induced flop of cycloidal spin order in multiferroic TbMnO3: The magnetic structure of the P||a phase
• Microscopic origin of Magnetic Ferroelectrics in Nonlinear Multiferroics
• Induced ferroelectric phases in TbMn_2O_5
• Order Parameters and Phase Diagrams of Multiferroics
• Symmetry and magnetically driven ferroelectricity in rare-earth manganites RMnO3 (R=Gd, Tb, Dy)
• Symmetry, incommensurate magnetism and ferroelectricity: the case of the rare-earth manganites RMnO3

Cited by in corpus (5)

• Multiferroic materials and magnetoelectric physics: symmetry, entanglement, excitation, and topology
• Thermodynamics of Electromechanically-Coupled Mixed Ionic-Electronic Conductors: Deformation potential, Vegard strains and Flexoelectric effect
• Universal emergence of spatially-modulated structures induced by flexo-antiferrodistortive coupling in multiferroics
• Evolution from sinusoidal to collinear A-type antiferromagnetic spin-ordered magnetic phase transition in Tb0.6Pr0.4MnO3
• Spectrum of Coupled Waves in Orthorhombic Multiferroics With Cycloidal Antiferromagnetic Structure in External Electric and Magnetic Fields