| タイトル | Enhanced ultrasonic attenuation of Tl-Ca-Ba-Cu-O at the superconducting transition |
| 著者（英） | Sun, K. J.; Winfree, W. P.; Xu, M.-F.; Levy, M.; Sarma, Bimal K. |
| 著者所属（英） | College of William and Mary|Wisconsin Univ.|NASA Langley Research Center |
| 発行日 | 1990-08-01 |
| 言語 | eng |
| 内容記述 | Temperature-dependent ultrasonic attenuation measurements have been performed on polycrystalline samples of Tl-Ca-Ba-Cu-O at various frequencies. An attenuation anomaly was observed close to the superconducting transition temperature T(c) (103 K) whose temperature position was frequency-independent. The attenuation decreased exponentially with temperature in the superconducting state for both transverse and longitudinal waves. It was also found that the temperature-dependent sound velocity showed a slope change around T(c). |
| NASA分類 | SOLID-STATE PHYSICS |
| レポートNO | 90A49078 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/353935 |
