期刊論文
| 學年 | 89 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2000-08-01 |
| 作品名稱 | Location of the superconducting hole condensate in Sr2YRu1−uCuuO6 by μ+SR |
| 作品名稱（其他語言） | |
| 著者 | Harshman, D. R.; Kossler,W. J.; Greer, A. J.; Stronach, C. E.; Koster, E.; Hitti, B.; Wu, M. K.; Chen, D. Y.; 錢凡之; Chien, F. Z.; Blackstead, H. A.; Dow, John D. |
| 單位 | 淡江大學物理學系 |
| 出版者 | Amsterdam: Elsevier BV * North-Holland |
| 著錄名稱、卷期、頁數 | Physica B: Condensed Matter 289-290, pp.360-364 |
| 摘要 | The magnetic and superconducting characteristics of sintered Sr2YRu1-uCuuO6 (for /u=0.05, 0.10, 0.15) were probed using transverse- and zero-field muon-spin rotation (μ+SR). Since positive muons are attracted to oxygen ions in the high-TC oxides, Sr2YRu1-uCuuO6 should (and does) present two types of μ+ sites, one in the YRuO4 layers and the other in the SrO layers. The transverse- and zero-field μSR spectra for all three stoichiometries exhibit magnetic ordering at and below TN ~ 30K, with a static local field of ~3kG. This transition is marked by a dramatic increase in the μ+ spin relaxation rate as the temperature decreases below TN, corresponding to an increased static disordering of the magnetic moments. Above TN no static fields are observed. Instead, the data exhibit a slow dynamic depolarization, presumably due to rapid fluctuation of magnetic moments. Both transverse- and zero-field data also indicate a smaller second component (~10%) that we associate with the SrO layer, exhibiting superconducting behavior in transverse field with an observed bulk TC~TN~30K. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 0921-4526 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | |
| 國別 | NLD |
| 公開徵稿 | |
| 出版型式 | 紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27719 ) |