ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The trapped magnetic field of melt-textured Y-Ba-Cu-O samples has been studied. The measured field distributions can be well reproduced by a simple two-current model consisting of a constant surface current and a constant volume current. If the sample is maximally magnetized (saturated case), the remnant sample magnetic moment can be calculated from the two-current model, and the results agree with vibrating sample magnetometer measurements to typically 10%. Jc of the sample can then be obtained. The application of the two-current model to the analysis of the nonsaturated case is also reported, for both field-cooled and zero-field-cooled samples. The experimental data show the general features predicted by the Bean model, which, however, has to be modified to account for the data quantitatively.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.352552
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