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  Crystal Growth and Real Structure Effects of the First Weak 3D Stacked Topological Insulator Bi14Rh3I9

Rasche, B., Isaeva, A., Gerisch, A., Kaiser, M., Van den Broek, W., Koch, C. T., et al. (2013). Crystal Growth and Real Structure Effects of the First Weak 3D Stacked Topological Insulator Bi14Rh3I9. Chemistry of Materials, 25(11), 2359-2364. doi:10.1021/cm4010823.

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Rasche, B., Autor
Isaeva, A., Autor
Gerisch, A., Autor
Kaiser, M., Autor
Van den Broek, W., Autor
Koch, C. T., Autor
Kaiser, U., Autor
Ruck, M.1, Autor           
Affiliations:
1Michael Ruck, Max Planck Fellow, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863444              

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 Zusammenfassung: A detailed account of the crystal-growth technique and real structure effects of the first 3D weak topological insulator Bi14Rh3I9 = [(Bi4Rh)(3)I][BiI4](2) is given. As recently shown, this compound features decorated-honeycomb [(Bi4Rh)(3)I](2+) sheets with topologically protected electronic edge-states and thereby constitutes a new topological class. Meticulous optimization of the synthesis protocol, using thermochemical methods, yielded high-quality crystals of Bi14Rh3I9 suitable for the experimental characterization of the structural as well as topological properties. Insightful information about the crystal structure, its pseudosymmetry, and the thereby caused stacking disorder and twinning phenomena, obtained by X-ray diffraction and TEM studies, is crucial for an adequate theoretical modeling of coupling between the topologically nontrivial sheets. As demonstrated here, Bi14Rh3I9 is not an exotic anomaly, but a stable, structurally well-defined bulk material, which can be used for gaining experimental knowledge about the yet poorly investigated class of weak 3D topological insulators. It could equally foster the synthesis and understanding of related compounds with the bismuth-based decorated-honeycomb sheets.

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Sprache(n): eng - English
 Datum: 2013-06-11
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: eDoc: 668948
ISI: 000320485700019
DOI: 10.1021/cm4010823
 Art des Abschluß: -

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Titel: Chemistry of Materials
Genre der Quelle: Zeitschrift
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Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 25 (11) Artikelnummer: - Start- / Endseite: 2359 - 2364 Identifikator: ISSN: 0897-4756