Results 11 to 20 of about 23,476 (287)
Understanding complex multiple sublattice magnetism in double double perovskites [PDF]
Scientific Reports, 2021 Understanding magnetism in multiple magnetic sublattice system, driven by the interplay of varied nature of magnetic exchanges, is on one hand challenging and on other hand intriguing.
Anita Halder +3 more
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Double Double to Double Perovskite Transformations in Quaternary Manganese Oxides [PDF]
Angewandte Chemie International Edition, 2021 AbstractControl of cation ordering in ABX3 perovskites is important to structural, physical and chemical properties. Here we show that thermal transformations of AA′BB′O6 double double perovskites, where both A and B sites have 1:1 cation order, to (A0.5A′0.5)2BB′O6 double perovskites with fully disordered A/A′ cations can be achieved under pressure in
Kunlang Ji +5 more
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Double and double double perovskites in the RMnMnTaO6 series [PDF]
Journal of Solid State Chemistry, 2022 A new family of perovskites RMnMnTaO6 has been synthesised at high pressure for representative R = La, Nd, Sm, Eu, Gd, Y and Lu that span the whole rare earth series. The structure type changes from tetragonal P42/n double double perovskite (DDPv) type with columnar R3+/Mn2+ cation order (R = La, Nd, Sm) to monoclinic P21/n double perovskite (DPv) (
Ji, K. +4 more
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CaFeFeNbO6 – an iron-based double double perovskite [PDF]
Chemical Communications, 2023 CaFeFeNbO6, synthesised at 14 GPa pressure, is the first reported Fe-based double double perovskite. Fe/Nb disorder leads to a spin glass ground state below a freezing transition at 12 K.
K. Ji +5 more
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Layered Double Perovskites [PDF]
Annual Review of Materials Research, 2021 Successful strategies for the design of crystalline materials with useful function are frequently based on the systematic tuning of chemical composition within a given structural family. Perovskites with the formula ABX3, perhaps the best-known example of such a family, have a vast range of elements on A, B, and X sites, which are associated with a ...
Evans, Hayden A +3 more
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Halide Double Perovskite Ferroelectrics
Angewandte Chemie, 2020 AbstractHalide double perovskites have recently emerged as a promising environmentally friendly optoelectronic and photovoltaic material for their inherent thermodynamic stability, high defect tolerance, and appropriate band gaps. However, to date, no ferroelectric material based on halide double perovskites has been discovered.
Weichuan Zhang, Maochun Hong, Junhua Luo
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Chemical Mapping of Excitons in Halide Double Perovskites. [PDF]
Nano Lett, 2023 Halide double perovskites are an emerging class of semiconductors with tremendous chemical and electronic diversity. While their bandstructure features can be understood from frontier-orbital models, chemical intuition for optical excitations remains incomplete. Here, we use \textit{ab initio} many-body perturbation theory within the $GW$ and the Bethe-
Biega RI, Chen Y, Filip MR, Leppert L.
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Catalysis Communications, 2023 In this study, we successfully prepared Bi-based single perovskites of the A3Bi2I9 type (A = Cs, Rb, MA, FA), and, for the first time, attempted to experimentally obtain double perovskites Cs2B'BiI6 type (B′ = Ag, Au, In, Cu).
Magdalena Miodyńska +3 more
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Recent Advancements in Crystalline Pb-Free Halide Double Perovskites
Crystals, 2020 Lead halide perovskites have gained more and more attention because of their ease of synthesis and excellent photoelectric properties including a large absorption coefficient, long carrier lifetime, long carrier diffusion length, and high carrier ...
Muhammad Usman, Qingfeng Yan
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Strong Electron–Phonon Coupling Induced Self‐Trapped Excitons in Double Halide Perovskites
Advanced Energy & Sustainability Research, 2023 Double halide perovskites exhibit impressive potential for the self‐trapped exciton (STEs) luminescence. However, the detailed mechanism of the physical nature during the formation process of STEs in double perovskites is still ambiguous.
Baian Chen, Rui Chen, Bolong Huang
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