教師資料查詢 | 類別: 期刊論文 | 教師: 彭維鋒 Pong, Way-faung (瀏覽個人網頁)

標題:Extended X-ray absorption fine-structure studies of Zn1-xMnxSe alloy structure
學年78
學期2
出版(發表)日期1990/04/01
作品名稱Extended X-ray absorption fine-structure studies of Zn1-xMnxSe alloy structure
作品名稱(其他語言)
著者Pong, Way-faung; Mayanovic, R.A.; Bunker, B.A.; Furdyna, J.K.; Debska, U.
單位淡江大學物理學系
出版者College Park: American Physical Society
著錄名稱、卷期、頁數Physical Review B (Condensed Matter) 41(12), pp.8440-8448
摘要Bond lengths, Debye-Waller factors, and site occupancy in the diluted magnetic semiconductor Zn1-xMnxSe have been measured using extended x-ray-absorption fine structure. The nearest-neighbor bond lengths at both room temperature and low temperature (77 K) are found to be constant as a function of alloy composition within the experimental uncertainty of 0.01 Å. Because the average cation-cation distance changes with Mn content, these results necessarily imply distortion of the tetrahedral bond angles. The anion sublattice is shown to suffer the largest distortion, but the cation sublattice also exhibits some relaxation. The repercussions of these results are discussed, in terms of the amount of cation and anion sublattice distortion at low temperature and its connection to the superexchange mechanism occurring between the Mn2+ ions and mediated by the intervening anion in Zn1-xMnxSe.
關鍵字
語言英文
ISSN0163-1829;1095-3795
期刊性質國外
收錄於SCI
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式紙本;電子版
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