ISSN:
1573-7357
Keywords:
74.70
;
74.30
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Temperature dependence of intensity of rf acoustic powder echoes is studied for powdered samples of Bi2Sr2CaCu2O8 ceramics around the H-T phase boundary and compared with combined magnetization data in field-cooled and zero-field cooled conditions for the same powder. Rf acoustic powder echoes are found to vanish at HC2 rather than Hirr determined from the magnetization data and we conclude that the intrinsic pinning is important for the observation of rf acoustic powder echoes in the high-TC Bi2Sr2CaCu2O8 ceramics. Hysteretic behavior observed around HC2, suggests an existence of the first-order phase transition at the HC2 line.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00768519
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