Coupled Compositional and Displacive Modulations in KLaMnWO<sub>6</sub> Revealed by Atomic Resolution Imaging

García-Martín, Susana; King, Graham; Urones‐Garrote, E.; Woodward, Patrick M.

doi:10.1021/jacs.1c07426

Cited by 3 publications

(1 citation statement)

References 38 publications

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“…16 This family of doubly ordered compounds is the most complex structure amongst perovskites, which have shown complex compositional and displacive modulations of the crystal structure. 18,19 Another appealing feature of the doubly ordered AA′BB′O 6 perovskite is the polar structure, caused by the coupling between double cationic ordering and a − a − c + tilting of the octahedra. 15,20,21 Hence, the polar doubly ordered AA′BB′O 6 , in particular, those with perovskites with magnetic cations placed at both A-and B-sites, have generated great interest in the search for potential multiferroics.…”

Section: Introductionmentioning

confidence: 99%

The impact of A-site cations on the crystal structure and magnetism of the new double perovskites ALaCoTeO₆ (A = Na and K)

Wu,

Fang,

Jiang

et al. 2024

Dalton Trans.

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Section: Introductionmentioning

confidence: 99%

The impact of A-site cations on the crystal structure and magnetism of the new double perovskites ALaCoTeO₆ (A = Na and K)

Wu,

Fang,

Jiang

et al. 2024

Dalton Trans.

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In search of widening the electrochemical window of solid electrolytes for Li-batteries: the La_0.29Li_0.12+xM_1−xZr_xO₃ (M = Nb, Ta) perovskite-type systems

García-González,

Marín-Gamero,

Kuhn-Gómez

et al. 2024

J. Mater. Chem. A

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Studying the Defects in Spinel Compounds: Discovery, Formation Mechanisms, Classification, and Influence on Catalytic Properties

Tatarchuk

2024

Nanomaterials

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Spinel ferrites demonstrate extensive applications in different areas, like electrodes for electrochemical devices, gas sensors, catalysts, and magnetic adsorbents for environmentally important processes. However, defects in the real spinel structure can change the many physical and chemical properties of spinel ferrites. Although the number of defects in a crystal spinel lattice is small, their influence on the vast majority of physical properties could be really decisive. This review provides an overview of the structural characteristics of spinel compounds (e.g., CoFe2O4, NiFe2O4, ZnFe2O4, Fe3O4, γ–Fe2O3, Co3O4, Mn3O4, NiCo2O4, ZnCo2O4, Co2MnO4, etc.) and examines the influence of defects on their properties. Attention was paid to the classification (0D, 1D, 2D, and 3D defects), nomenclature, and the formation of point and surface defects in ferrites. An in-depth description of the defects responsible for the physicochemical properties and the methodologies employed for their determination are presented. DFT as the most common simulation approach is described in relation to modeling the point defects in spinel compounds. The significant influence of defect distribution on the magnetic interactions between cations, enhancing magnetic properties, is highlighted. The main defect-engineering strategies (direct synthesis and post-treatment) are described. An antistructural notation of active centers in spinel cobalt ferrite is presented. It is shown that the introduction of cations with different charges (e.g., Cu(I), Mn(II), Ce(III), or Ce(IV)) into the cobalt ferrite spinel matrix results in the formation of various point defects. The ability to predict the type of defects and their impact on material properties is the basis of defect engineering, which is currently an extremely promising direction in modern materials science.

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Coupled Compositional and Displacive Modulations in KLaMnWO₆ Revealed by Atomic Resolution Imaging

Cited by 3 publications

References 38 publications

The impact of A-site cations on the crystal structure and magnetism of the new double perovskites ALaCoTeO₆ (A = Na and K)

The impact of A-site cations on the crystal structure and magnetism of the new double perovskites ALaCoTeO₆ (A = Na and K)

In search of widening the electrochemical window of solid electrolytes for Li-batteries: the La_0.29Li_0.12+xM_1−xZr_xO₃ (M = Nb, Ta) perovskite-type systems

Studying the Defects in Spinel Compounds: Discovery, Formation Mechanisms, Classification, and Influence on Catalytic Properties

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Coupled Compositional and Displacive Modulations in KLaMnWO6 Revealed by Atomic Resolution Imaging

Cited by 3 publications

References 38 publications

The impact of A-site cations on the crystal structure and magnetism of the new double perovskites ALaCoTeO6 (A = Na and K)

The impact of A-site cations on the crystal structure and magnetism of the new double perovskites ALaCoTeO6 (A = Na and K)

In search of widening the electrochemical window of solid electrolytes for Li-batteries: the La0.29Li0.12+xM1−xZrxO3 (M = Nb, Ta) perovskite-type systems

Studying the Defects in Spinel Compounds: Discovery, Formation Mechanisms, Classification, and Influence on Catalytic Properties

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Resources

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Coupled Compositional and Displacive Modulations in KLaMnWO₆ Revealed by Atomic Resolution Imaging

The impact of A-site cations on the crystal structure and magnetism of the new double perovskites ALaCoTeO₆ (A = Na and K)

The impact of A-site cations on the crystal structure and magnetism of the new double perovskites ALaCoTeO₆ (A = Na and K)

In search of widening the electrochemical window of solid electrolytes for Li-batteries: the La_0.29Li_0.12+xM_1−xZr_xO₃ (M = Nb, Ta) perovskite-type systems