Multiscale Reciprocal Space Mapping of Magnetite Mesocrystals

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2022
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Chumakova, Aleksandra
Baburin, Igor A.
Mistonov, Alexander
Bosak, Alexeï
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Advanced Materials. Wiley. 2022, 35(2), 2207130. ISSN 0935-9648. eISSN 1521-4095. Available under: doi: 10.1002/adma.202207130
Zusammenfassung

Mesocrystals are a class of nanostructured material, where a multiple-length-scale structure is a prerequisite of many interesting phenomena. Resolving the mesocrystal structure is quite challenging due to their structuration on different length scales. The combination of small- and wide-angle X-ray scattering (SAXS and WAXS) techniques offers the possibility of non-destructively probing mesocrystalline structures simultaneously, over multiple length scales to reveal their microscopic structure. This work describes how high dynamical range of modern detectors sheds light on the weak features of scattering, significantly increasing the information content. The detailed analysis of X-ray diffraction (XRD) from the magnetite mesocrystals with different particle sizes and shapes is described, in tandem with electron microscopy. The revealed features provide valuable input to the models of mesocrystal growth and the choice of structural motif; the impact on magnetic properties is discussed.

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530 Physik
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magnetite, mesocrystals, microscopic structure, multiple-length-scale structures, supercrystallography
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ISO 690CHUMAKOVA, Aleksandra, Tristan STEEGEMANS, Igor A. BABURIN, Alexander MISTONOV, Julian BRUNNER, Felizitas KIRNER, Ilona WIMMER, Mikhail FONIN, Elena V. STURM, Alexeï BOSAK, 2022. Multiscale Reciprocal Space Mapping of Magnetite Mesocrystals. In: Advanced Materials. Wiley. 2022, 35(2), 2207130. ISSN 0935-9648. eISSN 1521-4095. Available under: doi: 10.1002/adma.202207130
BibTex
@article{Chumakova2022-12-09Multi-59826,
  year={2022},
  doi={10.1002/adma.202207130},
  title={Multiscale Reciprocal Space Mapping of Magnetite Mesocrystals},
  number={2},
  volume={35},
  issn={0935-9648},
  journal={Advanced Materials},
  author={Chumakova, Aleksandra and Steegemans, Tristan and Baburin, Igor A. and Mistonov, Alexander and Brunner, Julian and Kirner, Felizitas and Wimmer, Ilona and Fonin, Mikhail and Sturm, Elena V. and Bosak, Alexeï},
  note={Article Number: 2207130}
}
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