Crystal growth and thermodynamic investigation of Bi2M2+O4 (M = Pd, Cu)
- Phase equilibria that are relevant for the growth of Bi2MO4 have been studied experimentally, and the ternary phase diagrams of Bi2O3-PdO2-Pd and Bi2O3-Cu2O-CuO and its isopleth section Bi2O3-CuO were redetermined. It is shown that every melting and crystallization process is always accompanied by a redox process at the phase boundary and that for both title compounds, the valence of the transition metal is lowered during melting. Vice versa, during crystal growth, O-2 must be transported through the melt to the phase boundary. Based on these new insights provided by our thermodynamic studies, Bi2CuO4 single crystals with a length of up to 7 cm and a diameter of 6 mm were grown by the OFZ technique to be used for investigations of magnetic, electronic and thermal transport properties. The grown crystals were characterized by powder X-ray diffraction, Laue, magnetization and specific heat measurements.
Author details: | Nora WolffORCiDGND, Detlef KlimmORCiDGND, Klaus HabichtORCiDGND, Katharina FritschORCiDGND |
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DOI: | https://doi.org/10.1039/d1ce00220a |
ISSN: | 1466-8033 |
Title of parent work (English): | CrystEngComm / The Royal Society of Chemistry |
Publisher: | Royal Society of Chemistry |
Place of publishing: | Cambridge |
Publication type: | Article |
Language: | English |
Date of first publication: | 2021/04/15 |
Publication year: | 2021 |
Release date: | 2024/05/08 |
Volume: | 23 |
Issue: | 17 |
Number of pages: | 9 |
First page: | 3230 |
Last Page: | 3238 |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
DDC classification: | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
Peer review: | Referiert |
Publishing method: | Open Access / Hybrid Open-Access |
License (English): | Creative Commons - Namensnennung-Nicht kommerziell 3.0 Unported |