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第44号 >

Please use this identifier to cite or link to this item: http://hdl.handle.net/11178/4702

Title: Hg系超伝導体のグレインと交流帯磁率特性(電気情報工学科)
Other Titles: AC susceptibility in Grained Hg-1223 superconductor(DEPARTMENT OF ELECTRICAL ENGINEERING AND INFORMATION TECHNOLOGY)
Authors: 福田, 有史
阿久根, 忠博
坂本, 進洋
松本, 泰國
AKUNE, Tadahiro
SAKAMOTO, Nobuyoshi
フクダ, ユウシ
アクネ, タダヒロ
サカモト, ノブヨシ
マツモト, ヤスクニ
九州産業大学工学研究科電気工学専攻 / 九州産業大学電気工学科 / 九州産業大学電気工学科 / 福岡大学 / /
/ / / / Freie Universitat Berlin / Institut von Ionenstrahl und Vakuum Technologie
Keywords: Grained Bean model
AC susceptibility
Pinning penetration field
Hg-1223 superconductor
Issue Date: Dec-2007
Publisher: 九州産業大学工学部
Abstract: High-T_c ceramics are composed by two regions, grains and intergrains and the characteristics are determined by the combination of their properties. The main cause of the degradation of superconducting characteristics originates in the weak superconducting intergrain among the grains. A quantitative analysis of the contribution due to the grain and link should be made and the grained Bean model is proposed, where the superconducting phases are immersed in the matrix link superconductor. This model gives a variety of complex AC susceptibility curves. Double peaks appearing in the imaginary part χ" of the AC susceptibility and the shoulder transition in the real part χ' are well traced by this model. Comparison of observed curves in Hg-1223 superconductors allows more clear insight on the grain and intergrain characteristics.
URI: http://hdl.handle.net/11178/4702
Appears in Collections:第44号

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