원문정보
초록
영어
MgB2 thin films with superior superconducting properties are very promising for superconducting magnets, electronic devices and coated conductor electric power applications. A clear understanding of flux pinning mechanism in MgB2 films could be a big aid in improving the performance of MgB2 by the enhancement of Jc. The fabrication advancement and the understanding of flux pinning mechanism of MgB2 thin and thick films fabricated by using hybrid physical-chemical vapor deposition (HPCVD) are reviewed. The distinct kind of MgB2 films, such as single-crystal like MgB2 thin films, MgB2 epitaxial columnar thick films, and a-axis-oriented MgB2 films are included for flux pinning mechanism investigation. Various attempts made by researchers to improve further the flux pinning property and Jc performance by means of doping in MgB2 thin films by using HPCVD are also summarized.
목차
1. INTRODUCTION
2. HPCVD TECHNIQUE
3. MgB2 FILMS BY HPCVD
3.1. Single-crystal like MgB2 thin films
3.2. MgB2 columnar thick films
3.3. a-axis-oriented MgB2 films
4. DOPING / IMPURITY EFFECT ON Jc
4.1. Effect of Ag-impurity layers
4.2. Effect of Cu-impurity layers
4.3. Effect of amorphous SiC-impurity layers
4.4. Effect of crystalline SiC-buffer layers
4.5. Effect of carbon-doping
5. CONCLUSIONS AND FUTURE ISSUES
ACKNOWLEDGMENT
REFERENCES