ShareINVESTIGATION OF INTER- AND INTRAGRAIN CRITICAL CURRENTS IN HIGH CRITICAL TEMPERATURE CERAMIC SUPERCONDUCTORS.
Author(s) : KUPFER H.
Type of article: Article
Summary
POLYCRYSTALLINE SINTERED BULK SAMPLES OF YBACUO AND GDBACUO, WERE STUDIED BY AC SUSCEPTIBILITY AND AN INDUCTIVE MEASUREMENT TECHNIQUE WHICH ALLOWS THE SEPARATION OF INTERGRAIN (TRANSPORT) FROM INTRAGRAIN CRITICAL CURRENT DENSITY. UP TO FIELDS 0.3 T THE WEAK LINK CHARACTER OF THE INTERGRAIN CURRENT PREDOMINATES. AT HIGHER FIELDS IT POINTS TO A PERCOLATION CURRENT VIA SUPERCONDUCTING GRAIN BOUNDARIES. A QUANTITATIVE CORRELATION BETWEEN INTRAGRAIN CURRENT AND TWIN SPACING IS HIDDEN, PROBABLY BY OXYGEN DEFICIENCY IN THE GRAIN INTERIOR.
Details
- Original title: INVESTIGATION OF INTER- AND INTRAGRAIN CRITICAL CURRENTS IN HIGH CRITICAL TEMPERATURE CERAMIC SUPERCONDUCTORS.
- Record ID : 1989-1696
- Languages: English
- Source: Cryogenics - vol. 28 - n. 10
- Publication date: 1988
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