Citation: YANG Cheng-Xu, JU Jing, ZHAO Shi-Di, XU Hang-Yu, LIU Meng, LIAO Fu-Hui, LI Guo-Bao, LIN Jian-Hua. Synthesis of β-FeSe by Salt-Flux Method under Air Atmosphere[J]. Acta Physico-Chimica Sinica, ;2013, 29(12): 2661-2666. doi: 10.3866/PKU.WHXB201310151 shu

Synthesis of β-FeSe by Salt-Flux Method under Air Atmosphere

YANG Cheng-Xu ¹ ,
JU Jing ^1, ,
ZHAO Shi-Di ² ,
XU Hang-Yu ¹ ,
LIU Meng ³ ,
LIAO Fu-Hui ¹ ,
LI Guo-Bao ^1, ,
LIN Jian-Hua ^1,

1.
1 State Key Laboratory of Rare Earth Materials Chemistry and Applications, Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China;
2 Beijing Huiwen Middle School, Beijing 100061, P. R. China;
3 College of Chemistry and Material Science, Wenzhou University, Wenzhou 325027, Zhejiang Province, P. R. China

Received Date: 18 June 2013
Available Online: 15 October 2013
Fund Project: 国家重点基础研究发展规划项目(973) (2010CB833103) (973) (2010CB833103)国家自然科学基金(21201012)资助项目 (21201012)

β-FeSe is typically prepared under vacuum at high temperatures exceeding 800 ℃. Here we develop a new LiCl/NaCl/KCl flux method to successfully synthesize β-FeSe under air atmosphere. The synthetic procedure is simple and without evacuation pretreatment. The flux effectively decreases the synthetic temperature and protects the reactants and products from air. X-ray diffraction data and Rietveld analysis show that the product has high purity. Magnetic and electrical measurements confirm that all samples obtained show superconductivity below 8 K.
- β-FeSe,
- Iron-based superconductor,
- Salt-flux method,
- Air atmosphere,
- X-ray diffraction
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