Weak ferromagnetism in perovskite oxides

Zhou, Jianshi; Marshall, Luke G.; Li, Z.-Y.; Li, X.; He, Jiaming

doi:10.1103/physrevb.102.104420

Cited by 38 publications

(30 citation statements)

References 25 publications

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“…The paper focused on the Dzyaloshinskii vector, its value, orientation, and sense. Our analysis once again confirms the unambiguous leading role of antisymmetric exchange in the formation of overt and hidden canting in orthoferrites and the fallacy of the argumentation of the authors of the recent paper [7].…”

Section: Discussionsupporting

confidence: 84%

“…The immediate motivation to write this work was the recent publication of an article by Zhou et al [7], in which, contrary to seemingly well-established concepts, it is argued that single-ion anisotropy, and not the DM interaction, is responsible for the formation of the weak ferromagnetic moment of rare-earth orthoferrites. Moreover, the authors make this conclusion supposedly on the basis of the structure-property relationships.…”

Section: Introductionmentioning

confidence: 99%

“…Theoretical predictions for the overt canting in orthoferrites (hollow circles) normalized on experimental data for YFeO 3 . Solid circles are latest experimental data for orthoferrites with nonmagnetic R ion[7].…”

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confidence: 99%

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Structure–Property Relationships for Weak Ferromagnetic Perovskites

Moskvin

2021

Magnetochemistry

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Despite several decades of active experimental and theoretical studies of rare-earth orthoferrites, the mechanism of the formation of their specific magnetic, magnetoelastic, optical, and magneto-optical properties remains a subject of discussion. This paper provides an overview of simple theoretical model approaches to quantitatively describing the structure–property relationships—in particular, the interplay between FeO6 octahedral deformations/rotations and the main magnetic and optic characteristics, such as Néel temperature, overt and hidden canting of magnetic sublattices, magnetic and magnetoelastic anisotropy, and optic and photoelastic anisotropy.

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Section: Discussionsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

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Structure–Property Relationships for Weak Ferromagnetic Perovskites

Moskvin

2021

Magnetochemistry

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“…LaFeO 3 with an orthorhombically distorted perovskite structure is also multiferroic [5]. In the compound, a weak ferromagnetism was observed below T N = 740 K caused by the Dzyaloshinsky-Moriya interaction (DMI) and single-ion anisotropy [6] and the temperature of ferroelectric ordering is T C = 475 K. The magnetic cycloid does not form in LaFeO 3 [7].…”

Section: Introductionmentioning

confidence: 99%

Hyperfine interactions in the Bi1−xLaxFeO3 ferrites (x = 0.0225, 0.075, 0.9)

et al. 2021

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Hyperfine interactions in the Bi 1−x La x FeO 3 ferrites (where x = 0.0225, 0.075, 0.9) have been studied by means of 57 Fe Mössbauer spectroscopy and 140 Ce time differential perturbed angular γ -γ correlation methods. The information about the line shift δ, the lattice ε lat and the magnetic ε mag contributions to the quadrupole shift ε, isotropic H is and anisotropic H an contributions to the hyperfine magnetic field H hf on 57 Fe nuclei, anharmonicity parameter m, distribution of the hyperfine magnetic field p(H hf ), and supertransferred hyperfine magnetic fields on 140 Ce probe nuclei were obtained. In all studied compounds, the Fe ions are in a high-spin trivalent state. In the compounds with x = 0.0225 and 0.075 spatially modulated cycloidal magnetic structures exist. It was found that the sign of the effective constant of magnetic anisotropy K eff changes with the variation of x from 0.0225 to 0.075. The substitution of Bi by La increases the value of the hyperfine magnetic field on 57 Fe nuclei from 494 kOe in Bi 0.9775 La 0.0225 FeO 3 to 520 kOe in Bi 0.1 La 0.9 FeO 3 , i.e. by 26 kOe, while the corresponding supertransferred hyperfine magnetic field on 140 Ce probe nuclei decreases. Keywords Hyperfine interactions • Mössbauer spectroscopy • TDPAC • MultiferroicsThis article is part of the Topical Collection on

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“…Oxide perovskites are well known for their versatile applications in many fields, for example, in piezoelectricity, magnetism, superconductivity, [1][2][3][4] etc. In the last two decades halide perovskites have shown a paradigm shift in the application of perovskites.…”

Section: Introductionmentioning

confidence: 99%