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Magnetic torque of oriented bulk Bi2212 by the shock-loading method

Published online by Cambridge University Press:  03 March 2011

S. Kawamata ,
K. Okuda ,
M. Kikuchi ,
H. Hikosaka  and
Y. Syono
S. Kawamata
Affiliation:
Department of Physics and Electronics, University of Osaka Prefecture, Gakuen-cho, Sakai, Osaka 593, Japan
K. Okuda
Affiliation:
Department of Physics and Electronics, University of Osaka Prefecture, Gakuen-cho, Sakai, Osaka 593, Japan
M. Kikuchi
Affiliation:
Institute for Materials Research, Tohoku University, Katahira, Sendai 980, Japan
H. Hikosaka
Affiliation:
Institute for Materials Research, Tohoku University, Katahira, Sendai 980, Japan
Y. Syono
Affiliation:
Institute for Materials Research, Tohoku University, Katahira, Sendai 980, Japan
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Abstract

The magnetic torque of oriented bulk specimen of Bi2Sr2CaCu2O8+δ by the shock-loading method was measured under magnetic fields up to 8 kOe in the temperature range from 4.2 to 100 K. The torque amplitude of the shocked specimen was much larger than that of the as-grown bulk specimen measured as a reference. The angular dependence of the torque was reproduced by assuming the Gauss-type distribution for the crystalline orientation. It became clear that the magnetic torque of the shocked specimen showed the high degree of crystalline orientation in which the c-axis is perpendicular to the pellet disk plane and that the flux pinning perpendicular to the pellet disk plane was enhanced by shock-loading.

Type
Articles
Information
Journal of Materials Research , Volume 10 , Issue 10 , October 1995 , pp. 2444 - 2448
Copyright
Copyright © Materials Research Society 1995

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References

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