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.
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語言 en_US
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期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版
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機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/117392 )