| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1790410 | Journal of Crystal Growth | 2014 | 5 Pages |
Abstract
•(NaxKy)FezSe2 crystals are successfully prepared in NaCl/KCl flux at lower temperatures.•A reduction reaction that converts K ion in KCl into metal K by Na plays a crucial role in the process.•The crystals contain more SC phase in volume fraction and exhibit new features in transport.
(NaxKy)FezSe2 crystals are prepared by Na, Fe, and Se as starting materials in NaCl/KCl flux at low temperatures~720 °C. It is found that K is more preferred than Na to enter in between FeSe layers and forms the phase. Thus-obtained crystals contain more superconducting phase in volume fraction and exhibit new features in transport property. Our results provide a promising new synthetic route for preparing quality crystals of iron selenide superconductors.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Gang Wang, Tianping Ying, Yaobo Huang, Shifeng Jin, Lei Yan, Hong Ding, Xiaolong Chen,