Ultrasonic attenuation and velocity in BiSrCaCuO high Tc superconductor
| Autor: | Jiankai Hu, Senkui Zhang, Yusheng He, Deng Tingzhang, Jiong Xiang, Weili Cai, Qianlin Zhang, Zhang Liangkun |
|---|---|
| Rok vydání: | 1989 |
| Předmět: |
Superconductivity
Shear (sheet metal) Shear waves Phase transition Materials science Ultrasonic attenuation Condensed matter physics Ultrasonic velocity Energy Engineering and Power Technology Electrical and Electronic Engineering Condensed Matter Physics Longitudinal wave Electronic Optical and Magnetic Materials |
| Zdroj: | Physica C: Superconductivity and its Applications. :444-445 |
| ISSN: | 0921-4534 |
| DOI: | 10.1016/0921-4534(89)91097-6 |
| Popis: | The temperature dependences of ultrasonic attenuation and velocity in high Tc superconductor BiSrCaCuO were measured between 50k and 280k, using longitudinal and shear waves. Ultrasonic attenuation anomalies were found at 87k, 120k, 240k and 250k for longitudinal wave, and at 240k for shear wave; ultrasonic velocity anomalies were found at 87k, 240k for longitudinal wave and at 87k, 170k and 240k for shear wave. It was suggested that there is a second order phase transition at 240k. |
| Databáze: | OpenAIRE |
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