Journal
CRYSTALS
Volume 11, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/cryst11070758
Keywords
iron-based superconductor; BaFe2S3; laser-assisted floating zone technique; single crystal
Funding
- Alexander von Humboldt Foundation
- European Research Council (ERC) [742068]
- Max Planck Society under Max Planck-India partner group project
- Deutsche Forschungsgemeinschaft (DFG) [SFB 1143, 247310070]
- DFG [GRK 1621]
- Wurzburg-Dresden Cluster of Excellence on Complexity and Topology in Quantum Matter-ct.qmat [EXC 2147, 390858490]
- Open Access Fund of the Leibniz Association
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High-quality single crystals of BaFe2S3 are grown using a laser-assisted floating zone method, which yields large samples free of ferromagnetic impurities. These crystals show improved quality and purity compared to samples obtained using the procedure reported in the literature.
The quasi-one-dimensional antiferromagnetic insulator BaFe2S3 becomes superconducting under a hydrostatic pressure of similar to 10 GPa. Single crystals of this compound are usually obtained by melting and further slow cooling of BaS or Ba, Fe, and S, and are small and needle-shaped (few mm long and 50-200 mu m wide). A notable sample dependence on the antiferromagnetic transition temperature, transport behavior, and presence of superconductivity has been reported. In this work, we introduce a novel approach for the growth of high-quality single crystals of BaFe2S3 based on a laser-assisted floating zone method that yields large samples free of ferromagnetic impurities. We present the characterization of these crystals and the comparison with samples obtained using the procedure reported in the literature.
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