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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Blake, Graeme R.
University of Groningen
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (46/46 displayed)
- 2023Impact of two diammonium cations on the structure and photophysics of layered Sn-based perovskitescitations
- 2023Effects of Intermixing in Sb2Te3/Ge1+xTe Multilayers on the Thermoelectric Power Factorcitations
- 2023Structural Characterization and Thermoelectric Properties of Br-Doped AgSnm[Sb0.8Bi0.2]Te2+m Systemscitations
- 2023Structural Characterization and Thermoelectric Properties of Br-Doped AgSn m [Sb 0.8 Bi 0.2 ]Te 2+m Systemscitations
- 2022Thermoelectric properties of co-doped (Bi0.98In0.02)2Te2.7Se0.3 / reduced graphene oxide composites prepared by solid-state reactioncitations
- 2022Nanostructure and thermal power of highly-textured and single-crystal-like Bi2Te3 thin filmscitations
- 2022Nanostructure and thermal power of highly-textured and single-crystal-like Bi2Te3 thin filmscitations
- 2021Controlling phase separation in thermoelectric Pb1-xGexTe to minimize thermal conductivitycitations
- 2021Structural modulation in potassium birnessite single crystalscitations
- 2020Negative Thermal Quenching in FASnI3 Perovskite Single Crystals and Thin Filmscitations
- 2020Crystal structure and thermal behavior of Bi 6 Te 2 O 15citations
- 2020Structural and multiferroic properties in double-layer Aurivillius phase Pb0.4Bi2.1La0.5Nb1.7Mn0.3O9 prepared by molten salt methodcitations
- 2020Negative thermal quenching in FASnI 3 perovskite single crystals and thin filmscitations
- 2020Stable cesium formamidinium lead halide perovskites: a comparison of photophysics and phase purity in thin films and single crystalscitations
- 2019Stable Cesium Formamidinium Lead Halide Perovskitescitations
- 2019Mechanism of surface passivation of methylammonium lead tribromide single crystals by benzylaminecitations
- 2019Mechanism of surface passivation of methylammonium lead tribromide single crystals by benzylaminecitations
- 2019Enhancing the crystallinity and perfecting the orientation of formamidinium tin iodide for highly efficient Sn-based perovskite solar cellscitations
- 2019Electronic mobility and crystal structures of 2,5-dimethylanilinium triiodide and tin-based organic-inorganic hybrid compoundscitations
- 2019Stable Cesium Formamidinium Lead Halide Perovskites:A Comparison of Photophysics and Phase Purity in Thin Films and Single Crystalscitations
- 2018Micropatterned 2D Hybrid Perovskite Thin Films with Enhanced Photoluminescence Lifetimescitations
- 2018Micropatterned 2D Hybrid Perovskite Thin Films with Enhanced Photoluminescence Lifetimescitations
- 2018Out-of-plane polarization in a layered manganese chloride hybridcitations
- 2017Construction of new 1D and 2D coordination polymers generated from rigid N,N′-bis(4-pyridylmethylene)-1,5-naphthalenediamine ligand:Syntheses, crystal structures and luminescence propertiescitations
- 2017Construction of new 1D and 2D coordination polymers generated from rigid N,N′-bis(4-pyridylmethylene)-1,5-naphthalenediamine ligandcitations
- 2017Thermoelectric Performance of Na-Doped GeSecitations
- 2017Cd(II) coordination polymers based on expanded N,N′-heteroaromatic donor ligandscitations
- 2016Band gap narrowing of Sns2 superstructures with improved hydrogen productioncitations
- 2016Crystallite size dependence of thermoelectric performance of CuCrO2citations
- 2016Confinement Effects in Low-Dimensional Lead Iodide Perovskite Hybridscitations
- 2016Band gap narrowing of SnS2 superstructures with improved hydrogen productioncitations
- 2015Photophysics of Organic-Inorganic Hybrid Lead Iodide Perovskite Single Crystalscitations
- 2015Photophysics of Organic-Inorganic Hybrid Lead Iodide Perovskite Single Crystalscitations
- 2015Effect of Vacancies on Magnetism, Electrical Transport, and Thermoelectric Performance of Marcasite FeSe2-delta (delta=0.05)citations
- 2015Effect of Vacancies on Magnetism, Electrical Transport, and Thermoelectric Performance of Marcasite FeSe2-delta (delta=0.05)citations
- 2014High-Purity Fe3S4 Greigite Microcrystals for Magnetic and Electrochemical Performancecitations
- 2014High-Purity Fe3S4 Greigite Microcrystals for Magnetic and Electrochemical Performancecitations
- 2014Self-Assembly of Ferromagnetic Organic–Inorganic Perovskite-Like Filmscitations
- 2014Self-Assembly of Ferromagnetic Organic–Inorganic Perovskite-Like Filmscitations
- 2012Spin-lattice coupling in iron jarositecitations
- 2009Competition between Jahn-Teller coupling and orbital fluctuations in HoVO3citations
- 2007Experimental evidence for an intermediate phase in the multiferroic YMnO3citations
- 2007Competing orbital ordering in RVO(3) compoundscitations
- 2006Ordering on geometrically frustrating latticescitations
- 2002Structural and magnetic ordering in Pr0.65(CaySr1-y)0.35MnO3citations
- 2001The preparation of a novel layered lead titanate and its conversion to the perovskite lead titanate PbTiO3citations
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article
Structural modulation in potassium birnessite single crystals
Abstract
<p>We report on the growth of single-crystal potassium birnessite (K<sub>0.31</sub>MnO<sub>2</sub>·0.41H<sub>2</sub>O) and present both the average and local structural characterization of this frustrated magnetic system. Single crystals were obtained employing a flux growth method with a KNO<sub>3</sub>/B<sub>2</sub>O<sub>3</sub>flux at 700 °C. Single-crystal X-ray diffraction revealed an average orthorhombic symmetry, with space groupCmcm. A combination of high angle annular dark field scanning transmission electron microscopy (HAADF-STEM) with atomic resolution energy dispersive X-ray spectroscopy (EDS) demonstrated the layered structure of potassium birnessite with manganese-containing planes well separated by layers of potassium atoms. MnO<sub>6</sub>octahedra and the K/H<sub>2</sub>O planes were clearly imagedviaintegrated differential phase contrast (iDPC) STEM. Furthermore, iDPC-STEM also revealed the existence of local domains with alternating contrast of the manganese oxide planes, most likely originating from charge ordering of Mn<sup>3+</sup>and Mn<sup>4+</sup>along thec-axis. These charge-ordered domains are clearly correlated with a reduction in thec-lattice parameter compared to the rest of the matrix. The insight gained from this work allows for a better understanding of the correlation between structure and magnetic properties.</p>