教師資料查詢 | 類別: 期刊論文 | 教師: 張經霖 CHANG, HENRY CHING-LIN (瀏覽個人網頁)

標題:Size-Induced Transition from Magnetic Ordering to Kondo Behavior in (Ce,Al) Compounds
學年88
學期2
出版(發表)日期2000/05/22
作品名稱Size-Induced Transition from Magnetic Ordering to Kondo Behavior in (Ce,Al) Compounds
作品名稱(其他語言)
著者Chen, Y. Y.; Yao, Y. D.; Wang, C. R.; Li, W. H.; Chang, C. L.; Lee, T. K.; Hong, T. M.; Ho, J. C.; Pan, S. F.
單位淡江大學物理學系
出版者College Park: American Physical Society (APS)
著錄名稱、卷期、頁數Physical Review Letters 84(21), pp.4990-4993
摘要Magnetic ordering and Kondo behavior coexist in three (Ce,Al)-based compounds: CeAl2, Ce3Al, and Ce3Al11. A common feature apparently independent of crystal structures also prevails in terms of the size-induced transition between these two magnetic phenomena. As the particle size is reduced to nanoscale, the specific heat anomaly associated with the magnetic ordering diminishes. Although the Kondo temperature also decreases, the entropy associated with Kondo anomaly exhibits a large increase. This results in an enhancement of the Kondo behavior and an increased coefficient γ of the linear term in specific heat. For example, in 80 Å CeAl2 the extrapolated r(0) reaches 9000mJmolCe−1K−2.
關鍵字
語言英文
ISSN1079-7114;0031-9007
期刊性質國內
收錄於
產學合作
通訊作者
審稿制度
國別
公開徵稿
出版型式紙本;電子版
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