教師資料查詢 | 類別: 期刊論文 | 教師: 錢凡之 CHIEN, FAN-Z (瀏覽個人網頁)

標題:Location of the superconducting hole condensate in Sr2YRu1−uCuuO6 by μ+SR
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
語言英文
ISSN0921-4526
期刊性質國外
收錄於SCI
產學合作
通訊作者
審稿制度
國別荷蘭
公開徵稿
出版型式紙本
相關連結
Google+ 推薦功能,讓全世界都能看到您的推薦!