Superconductivity in Fe1+d Te0.9Se0.1 Induced by Deintercalation of Excess Fe Using Alcoholic Beverage Treatment

作者：Deguchi K^*; Demura S; Yamaki T; Hara H; Denholme S J; Fujioka M; Okazaki H; Takeya H; Yamaguchi T; Takano Y

来源：Journal of Superconductivity and Novel Magnetism, 2014, 27(2): 305-308.

DOI：10.1007/s10948-013-2292-3

• Fe-based superconductivity
• FeTe1-xSex
• Alcoholic beverage treatment
• Deintercalation
• Excess Fe

Superconductivity in polycrystalline Fe1+d Te0.9Se0.1 was enhanced by heating in alcoholic beverages. We found that part of the excess Fe was deintercalated from the interlayer sites by the treatment and the shielding volume fractions were increased with the reduction of excess Fe content in sample. This behavior is similar to the case of Fe1+d Te1-x S (x) . Thus the technique of alcoholic beverage treatment can be applied generally to the Fe-chalcogenide superconductors.

• 出版日期2014-2