| タイトル | Microstructure and magnetization of doped Y-Ba-Ca-O materials prepared by melt quench and post annealing method |
| 本文（外部サイト） | http://hdl.handle.net/2060/19900018487 |
| 著者（英） | Alterescu, S.; Haught, D. A.; Talmy, I. G.; Barkatt, A.; Thorpe, A. N.; Michael, K. A.; Hu, S.; Hojaji, H. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 1990-04-01 |
| 言語 | eng |
| 内容記述 | Y-Ba-Cu-O bulk materials prepared using the melt quench and post annealing method were shown to have very high maximum as well as remanent magnetization. Studies were carried out on materials prepared using this method which deviate from the Y:Ba:Cu = 1:2:3 stoichiometry. In one series of materials, only the stoichiometry was changed, in particular by introducing an excess of yttrium. In other cases, dopants including several rare earths were introduced. Effects of variations in composition on microstructure and phase evolution are discussed, as well as effects on the magnetic susceptibility and on the magnetization. The results show that doped materials can exhibit improvements in magnetic properties. Furthermore, the use of dopants sheds light on the role of defect sites in flux pinning. |
| NASA分類 | SOLID-STATE PHYSICS |
| レポートNO | 90N27803 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/136653 |
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