教師資料查詢 | 類別: 期刊論文 | 教師: 李啟正 LEE, CHI-CHENG (瀏覽個人網頁)

標題:X-ray diffuse scattering study of local distortions in Fe1+xTe induced by excess Fe
學年99
學期2
出版(發表)日期2011/05/31
作品名稱X-ray diffuse scattering study of local distortions in Fe1+xTe induced by excess Fe
作品名稱(其他語言)
著者X. Liu; C.-C. Lee; Z. J. Xu; J. S. Wen; G. Gu; W. Ku; J. M. Tranquada; J. P. Hill
單位
出版者
著錄名稱、卷期、頁數Phys. Rev. B 83, 184523
摘要We report x-ray diffuse scattering studies of the iron chalcogenide Fe
1
+
x
Te as a function of doping and temperature for
x
=
0
.
03
, 0.08, and 0.12. In all cases, remarkably strong, characteristic diffuse scattering is observed. This scattering extends throughout the Brillouin zone and exhibits a nonmonotonic decay away from the fundamental Bragg peaks, with a peaklike structure at a reduced
q

(
0
.
3
,
0
,
0
.
6
)
. We interpret this scattering as Huang diffuse scattering resulting from distortions induced by the interaction between the excess Fe and the FeTe layers. The form of the scattering indicates that this interaction is strong and extends a number of unit cells away from the interstitial Fe site. Further, the diffuse scattering shows a sudden decrease on cooling through the structural and magnetic phase transition, reflecting the first-order change of the electronic structure of FeTe.
關鍵字
語言英文(美國)
ISSN
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,電子版
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