Anelastic relaxation near Tc in Zn-substituted YBCO
| Autor: | Zhang Qingming, Li Ang, Li Bai-Qin, Xu Xiaoshan, Chen Wuming, Ying Xuenong, Wang Yening |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Superconductivity
Materials science Analytical chemistry Energy Engineering and Power Technology chemistry.chemical_element Zinc Condensed Matter Physics Internal friction Electronic Optical and Magnetic Materials chemistry visual_art visual_art.visual_art_medium Relaxation (physics) Superconducting transition temperature Ceramic Electrical and Electronic Engineering Zn doping |
| Zdroj: | Physica C: Superconductivity. 337:285-287 |
| ISSN: | 0921-4534 |
| DOI: | 10.1016/s0921-4534(00)00118-0 |
| Popis: | The anelastic properties of Zn-doped ceramic YBa 2 Cu 3 O 6+ δ superconductors were measured and two thermally activated relaxation peaks were observed in acoustic-frequency internal friction spectrum at 100 and 110 K. The intensity of the lower-temperature peak was found to decrease rapidly upon zinc substitution while the other one remains almost unaffected. The relaxation mechanisms for the two relaxation peaks are studied and the deteriorative effect of zinc substitution on superconductivity is also discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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