Robust conveniently sealable container for high-temperature single-crystal growth out of reactive melts with high vapor pressure

  • The high-temperature crystal growth of intermetallics often asks for sealing of the materials in a protective atmosphere. Here, we report on the development of a convenient sealing method for alkali-containing melts, with high vapor pressure and reactivity. Our newly designed container made of high-temperature resistant steel can be sealed manually and reliably without any air exposure of the containing material. The closed container may be heated in air up to at least 1150 ∘C. The containers were applied for the development and optimization of a high-temperature self-flux growth of KFe1-x Ag1+y Ch2 (Ch = Se, Te) single crystals. Their crystal structure and the low-temperature electrical resistance are presented. The successful growths of these air-sensitive materials out of a reactive self-flux confirm the reliability of the container.

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Author:Jutta Püttmann, N. S. Sangeetha, Teslin R. Thomas, Jörg Meermann, Andreas Kreyssig, Anna E. Böhmer
Frontdoor URL
Parent Title (English):Crystals
Publisher:MDPI AG
Date of first Publication:2023/08/31
Publishing Institution:Universität Augsburg
Release Date:2023/10/26
Tag:Inorganic Chemistry; Condensed Matter Physics; General Materials Science; General Chemical Engineering
First Page:1332
Institutes:Mathematisch-Naturwissenschaftlich-Technische Fakultät
Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik
Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik / Lehrstuhl für Experimentalphysik VI
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):CC-BY 4.0: Creative Commons: Namensnennung (mit Print on Demand)