Polythermal method of Top-Seeded Solution-Growth for large-sized single crystals of REBa2Cu3O7−δ

To overcome demerits of the low production efficiency in the prior art isothermal method (constant supercooling) of Top-Seeded Solution-Growth (TSSG), we applied the polythermal method (increasing supercooling), and a large YBa2Cu3O7−δ single crystal with a dimension of a×b×c=13.8×13.5×12.3mm was ob...

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Bibliographic Details
Published in:Scripta materialia 2016-04, Vol.116, p.36-39
Main Authors: Xiang, Hui, Guo, Linshan, Li, Haochen, Cui, Xiangxiang, Qian, Jun, Hussain, Ghulam, Liu, Yan, Yao, Xin, Rao, Qunli, Zou, Z.Q.
Format: Article
Language:English
Subjects:
Constants
Cooling rate
COPPER OXIDE
Crystallization
Czochralski technique
High-temperature superconductors
Metastable phases
Neodymium
Optimization
Polythermal
Single crystals
Solubility
SUPERCONDUCTORS
Supercooling
YBCO superconductors
YTTRIUM OXIDE
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Summary:To overcome demerits of the low production efficiency in the prior art isothermal method (constant supercooling) of Top-Seeded Solution-Growth (TSSG), we applied the polythermal method (increasing supercooling), and a large YBa2Cu3O7−δ single crystal with a dimension of a×b×c=13.8×13.5×12.3mm was obtained via a cooling rate of 0.5K/h, gaining a growth rate nearly 2 times faster than that by constant supercooling. The optimal growth mode was proposed for more REBa2Cu3O7−δ (RE=Sm, Nd) materials basing on their characteristics of solubility curves. [Display omitted]
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2016.01.037