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Please use this identifier to cite or link to this item: http://hdl.handle.net/11178/4758

Title: Hg-1223超伝導体におけるグレイン相間の交流帯磁率研究(電気情報工学科)
Other Titles: AC Susceptibility Studies of Inter-grains in Hg-1223 Superconductors(DEPARTMENT OF ELECTRICAL ENGINEERING AND INFORMATION TECHNOLOGY)
Authors: 坂本, 進洋
阿久根, 忠博
SAKAMOTO, Nobuyoshi
AKUNE, Tadahiro
Ruppert, Udo
サカモト, ノブヨシ
アクネ, タダヒロ
Department of Electrical Engineering and Information Technology, Kyushu Sangyo University / Department of Electrical Engineering and Information Technology, Kyushu Sangyo University / Tieftemperaturlabor, Fachbereich Physik, Freie Universitat Berlin
Issue Date: Dec-2007
Publisher: 九州産業大学工学部
Abstract: High- T_c ceramics tend to lower its quality by the aging effect. The main cause of the degradation is considered to originate in the weak link region between the superconducting grains. The preservation and recovery of superconductivity by reinforcement of the grain boundary is an important issue for high-Tc application. A quantitative analysis of the contribution due to the grain and the link is necessary and the grained Bean model is proposed, where the superconducting phases are immersed in the matrix link superconductor. Difference of the superconducting characteristics of the grain, the link and grain content factor give a variety of deformation on the AC susceptibility curves. Comparing the observed data with the numerically computed model allows more clear insight on the grain and inter-grain structures.
URI: http://hdl.handle.net/11178/4758
Appears in Collections:第44号

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