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	Frequency dependence of ac susceptibility of monofilament Bi-2223/Ag superconducting tapes
	Qu, T.-M. ; Luo, X.-M. ; Chen, D.-X. ; Han, Z.
	2010-05-06 ; 2010-05-06
会议名称	Physica C ; 16th International Symposium on Superconductivity (ISS 2003). Advances in Superconductivity XVI ; Tsukuba, Japan ; INSPEC
关键词	Experimental/ bismuth compounds calcium compounds composite superconductors critical current density (superconductivity) eddy currents flux creep high-temperature superconductors lead compounds magnetic susceptibility silver strontium compounds superconducting tapes/ frequency dependence complex ac susceptibility monofilament Bi-2223/Ag superconducting tapes perpendicular ac magnetic field amplitude etched tapes unetched tapes superconducting core flux creep critical current density eddy-current effect Ag sheath 0.1 to 50 mT 10 to 810 Hz Ag-(BiPb)/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O /sub 10// A7430C Magnetic properties of superconductors A7460J Critical currents in type-II superconductors A7460G Flux pinning, flux motion, fluxon-defect interactions A7470V Perovskite phase superconductors B3220M Superconducting wires and tapes B3220H High-temperature superconducting materials B0550 Composite materials (engineering materials science)/ magnetic flux density 1.0E-04 to 5.0E-02 T frequency 1.0E+01 to 8.1E+02 Hz/ Ag-BiPbSr2Ca2Cu3O10/int BiPbSr2Ca2Cu3O10/int Ca2/int Cu3/int O10/int Sr2/int Ag/int Bi/int Ca/int Cu/int Pb/int Sr/int O/int BiPbSr2Ca2Cu3O10/ss Ca2/ss Cu3/ss O10/ss Sr2/ss Bi/ss Ca/ss Cu/ss Pb/ss Sr/ss O/ss Ag/el
中文摘要	Measurements of complex ac susceptibility chi = chi ' - j chi " as a function of perpendicular ac magnetic field amplitude mu /sub 0 /H (0.1-50 mT) and frequency f (10-810 Hz) have been performed on etched and un-etched monofilament Bi-2223/Ag superconducting tapes. Only the superconducting core remains for the case of the etched sample. Both the chi '( mu /sub 0/H) and chi "( mu /sub 0/H) curves shift to higher values of mu /sub 0/H with increasing f. Defining the H at which chi " takes maximum as H/sub m/, we find that mu /sub 0 /H increases with f logarithmically for the case of etched sample, indicating the effect of flux creep on the critical current density. Compared with the etched sample, mu /sub 0/H/sub m/ for the un-etched sample is greater and it increases with f more quickly, showing an additional eddy-current effect of the Ag sheath.
会议录出版者	Elsevier ; Netherlands
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/6900]
专题	清华大学
推荐引用方式 GB/T 7714	Qu, T.-M.,Luo, X.-M.,Chen, D.-X.,et al. Frequency dependence of ac susceptibility of monofilament Bi-2223/Ag superconducting tapes[C]. 见:Physica C, 16th International Symposium on Superconductivity (ISS 2003). Advances in Superconductivity XVI, Tsukuba, Japan, INSPEC.

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