關鍵字查詢 | 類別:期刊論文 | | 關鍵字:X-ray diffuse scattering study of local distortions in Fe1+xTe induced by excess Fe

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序號 學年期 教師動態
1 99/2 物理系 李啟正 助理教授 期刊論文 發佈 X-ray diffuse scattering study of local distortions in Fe1+xTe induced by excess Fe , [99-2] :X-ray diffuse scattering study of local distortions in Fe1+xTe induced by excess Fe期刊論文X-ray diffuse scattering study of local distortions in Fe1+xTe induced by excess FeX. Liu; C.-C. Lee; Z. J. Xu; J. S. Wen; G. Gu; W. Ku; J. M. Tranquada; J. P. HillPhys. Rev. B 83, 184523We 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 i
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