NDLI: Flux-line pinning in polycrystalline La/sub 1.85/Sr/sub 0.15/CuO/sub 4/ irradiated with swift heavy ions

Content Provider	IEEE Xplore Digital Library
Author	Mitamura, T. Terasawa, M. Fan, X. Kohara, T. Ueda, K. Tsubakino, H. Yamamoto, A. Kambara, T. Matsubara, I. Murakami, T.
Copyright Year	1999
Description	Author affiliation: Himeji Inst. of Technol., Himeji, Japan (Mitamura, T.)
Abstract	The vortex pinning phenomena were investigated in type II high temperature superconducting material, polycrystalline La/sub 1.85/Sr/sub 0.15/CuO/sub 4/ to which 3.5 GeV Xe ion end 26 GeV Ar ion were irradiated. Changes of superconducting characteristics were measured before and after the ion irradiations using a superconducting quantum interference device (SQUID). In Xe irradiation as well as Ar irradiation, reduction of normalized rate of magnetic relaxation was observed. The reduction rate of Xe ion irradiated specimen was much larger than that of the Ar ion irradiated one. However, in polycrystalline LSCO, existence of grains with various directions and numerous grain boundaries may take considerable roles to pin vortex together with columnar defects. It appears that the creep rate obtained substantiates the collective creep model of the vortex.
Starting Page	1097
Ending Page	1100
File Size	398527
Page Count	4
File Format	PDF
ISBN	078034538X
DOI	10.1109/IIT.1998.813873
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-06-22
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Argon SQUIDs High temperature superconductors Type II superconductors Creep Superconducting materials Strontium Superconducting devices Interference Superconducting magnets
Content Type	Text
Resource Type	Article

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