Growth mechanism of MgB2 films in electrocrystallization process

✍ Scribed by K.M. Subhedar; R.S. Hyam; V. Ganesan; S.H. Pawar

• Publisher: Elsevier Science
• Year: 2006
• Tongue: English
• Weight: 642 KB
• Volume: 449
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/j.physc.2006.06.051

✦ Synopsis

The growth mechanism and morphology of MgB 2 films grown on magnesium films by electrocrystallization technique were discussed. The current time transients (CTT) recorded for charge transfer reaction during growth of MgB 2 films were used to infer the type (Instantaneous or Progressive) of growth mechanism. The CTT were also used to predict the morphology and features of the electrocrystallized MgB 2 thin films and the results were corroborated with atomic force microscopy (AFM). Further, the effects of heat treatment on morphology, growth and surface roughness of the electrocrystallized MgB 2 films were studied with AFM. The IR absorption studies were carried out to confirm the optimized heat treatment conditions for the formation of MgB 2 superconducting phase, which superconducts below 34 K.