Low-Temperature Rapid Synthesis and Superconductivity of Fe-Based Oxypnictide Superconductors

Author:

Fang Ai-Hua1,Huang Fu-Qiang1,Xie Xiao-Ming1,Jiang Mian-Heng1

Affiliation:

1. CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P.R. China, and State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, P.R. China

Publisher

American Chemical Society (ACS)

Subject

Colloid and Surface Chemistry,Biochemistry,General Chemistry,Catalysis

Reference9 articles.

1. Iron-Based Layered Superconductor La[O1-xFx]FeAs (x = 0.05−0.12) with Tc = 26 K

2. Control of F-Doping in Pnictide High-Temperature Superconductors

3. The intermediate compoundsLnAs, FeO, and Fe2As were prepared in this lab. Stoichiometric amouts of these compounds, either directly mixed or individually ball-milled, were thoroughly ground in an agate mortar in a glove-box filled with high-purity Ar gas, then were hand-pressed to form pellets ∼10 mm in diameter. The vacuum-sealed tubes with pellets were directly inserted into a hot furnace and sintered at the desired temperature for a certain time, and then were directly removed from the furnace and cooled down in air to room temperature. Details of sample preparation and physical measurements are given in theSupporting Information.

4. Superconductivity at 43 K in SmFeAsO1-xF x

5. The role of F-doping and oxygen vacancies on the superconductivity in SmFeAsO compounds

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