期刊論文
| 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 | en |
| ISSN | 1079-7114 0031-9007 |
| 期刊性質 | 國內 |
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| 產學合作 | |
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| 公開徵稿 | |
| 出版型式 | 紙本 電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27864 ) |