教師資料查詢 | 類別: 期刊論文 | 教師: 林諭男 I-nan Lin (瀏覽個人網頁)

標題:Growth and magnetic properties of self-assembled (In, Mn)As quantum dots
學年
學期
出版(發表)日期2005/07/01
作品名稱Growth and magnetic properties of self-assembled (In, Mn)As quantum dots
作品名稱(其他語言)
著者林諭男; Lin, I-nan; Chen, Y. F.; Lee, W. N.; Huang, J. H.; Chin, T. S.; Huang, R. T.; Chen, F. R.; Kai, J. J.; Aravind, K.; Lin, I. N.; Ku, H. C.
單位淡江大學物理學系
出版者American Institute of Physics (AIP)
著錄名稱、卷期、頁數Journal of Vacuum Science & Technology B 23(4), pp.1376-1378
摘要Self-assembled In0.79Mn0.21As quantum dots were successfully grown on GaAs (001) substrates by low-temperature molecular beam epitaxy. Atomic force microscopy and high-resolution transmission electron microscopy confirm the formation of quantum dots. High-resolution lattice image suggests that In0.79Mn0.21As dots are single phase with zinc-blend structure. The dots exhibit typical ferromagnetic state at 5 K and demonstrate a Curie temperature of similar to 290 K which is much higher than those of (In, Mn)As diluted magnetic semiconductor alloys ever reported. The significant increase in Curie temperature can be attributed to the much higher Mn content in the dots, and the possible enhancement of the hybridization strength between the quantum confined holes in the dots and the itinerant holes in the semiconductor valence band. (c) 2005 American Vacuum Society.
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語言英文
ISSN0022-5355
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國別中華民國
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