1. MgB2 thick films deposited on stainless steel substrate with T c higher than 39 K
- Author
-
Guo Tao, Zhang Kai-cheng, Chen Chin-ping, LI Fen, and Feng Qing-rong
- Subjects
Superconductivity ,Deposition rate ,Diffraction ,Materials science ,Physics and Astronomy (miscellaneous) ,chemistry ,Scanning electron microscope ,Magnesium ,Phase (matter) ,Analytical chemistry ,chemistry.chemical_element ,Substrate (electronics) ,Deposition (law) - Abstract
Thick MgB2 (magnesium diborate) films, ∼10 μm, with Tc (onset) = 39.4 K and Tc (zero) = 39.2 K have been successfully grown on a stainless steel substrate using a technique called hybrid physical-chemical deposition (HPCVD). The deposition rate is high, ∼6.7 nm/s. The X-ray diffraction (XRD) indicates that it is highly (101) and c-axis oriented. The scanning electron microscope (SEM) images demonstrate that the film grown is in “island-mode”. The uniform superconducting phase in the film is shown by the M-T measurement.
- Published
- 2006