| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9841802 | Physica C: Superconductivity and its Applications | 2005 | 5 Pages |
Abstract
Anelastic spectroscopy measurements (internal friction) are sensitive tools for the study of defects in solids, in particular the mobility of interstitial oxygen. Samples of Bi2Sr2CaCu2Oy were analyzed after being submitted to two thermal treatments in vacuum, one at 973Â K and another at 673Â K. Anelastic spectroscopy measurements were performed using a torsion pendulum operating at around 38Â Hz and at a temperature range of 88 and 700Â K with heating rate of 1Â K/min and vacuum better than 10â5Â Torr. Complex relaxation structures reversible with new thermal treatments were observed. These relaxation structures were attributed to O-M structural phase transitions.
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Authors
Juliana Maria de Albuquerque Gimenez, Carlos Roberto Grandini, Dayse Iara dos Santos,