Correlation of AC Loss Data from Magnetic Susceptibility Measurements with YBCO Film Quality (Postprint)
Abstract
It has been previously suggested that with spreading of the temperature-dependent ac susceptibility curves with increasing applied magnetic field, the quality of the YBCO film generally decreases. However, a documented study of this correlation to current transport properties using the imaginary or loss component of ac susceptibility data is not available. A detailed study was performed using the available data on YBCO films produced by pulsed laser deposition on different substrates which included LAO, STO, and buffered metallic substrates. The change in (delta) T between the temperatures at which the maxima in the ac loss occurs for 0.025 and 2.2 Oe applied magnetic fields (peak to peak of X") was determined. In addition, the full-width at half-maximum (FWHM) of the X" vs. T width (delta T) of the loss component of susceptibility data was determined for the 0.025 Oe magnetic field data and the 2.2 Oe magnetic field data for comparison. A correlation on this level may prove useful as a preliminary screen of YBCO film quality, especially as good YBCO films can now be routinely made.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 2012
- Accession Number
- ADA559216
Entities
People
- Amanda L. Westerfield
- Iman Maartense
- Justin C. Tolliver
- Lyle B. Brunke
- Paul N. Barnes
- Srinivas Sathiraju
- Timothy J. Haugan
- Timothy L. Peterson
Organizations
- Air Force Research Laboratory