A novel selenization technique for fabrication of superconducting FeSex thin film

作者：Chai Qing Lin^*; Tu Hai Ling; Hua Zhi Qiang; Wang Lei; Qu Fei

来源：Physica C-Superconductivity and Its Applications, 2011, 471(13-14): 428-431.

DOI：10.1016/j.physc.2011.04.013

• FeSex film
• Selenization
• Superconductor
• Transport properties

A combinative method with reactive sputtering deposition and selenization technique was applied to prepare superconducting FeSex films on LaAlO3 substrates successfully. The influence of selenizing temperature on film components was studied. FeSe0.96 and FeSe films had similar and good performances in transport measurement but little difference in magnetic property. The critical onset temperature got to 11.2 K and T-c,T-0 got to 4 K approximately. X-ray diffraction, energy dispersive spectroscopy and scanning electron microscopy were used to analyze the ratio of constituents and morphology of several selenized films. FeSex film had a porous structure on surface and no well preferred orientation, which were confirmed to have little influence on superconducting properties.

• 出版日期2011-7
• 单位北京有色金属研究总院