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:Nonresonant Inelastic X-Ray Scattering and Energy-Resolved Wannier Function Investigation of d-d Excitations in NiO and CoO
學年95
學期2
出版(發表)日期2007/07/10
作品名稱Nonresonant Inelastic X-Ray Scattering and Energy-Resolved Wannier Function Investigation of d-d Excitations in NiO and CoO
作品名稱(其他語言)
著者B. C. Larson; Wei Ku; J. Z. Tischler; Chi-Cheng Lee; O. D. Restrepo; A. G. Eguiluz; P. Zschack; K. D. Finkelstein
單位
出版者
著錄名稱、卷期、頁數Phys. Rev. Lett. 99(2), 026401
摘要Nonresonant inelastic x-ray scattering measurements on NiO and CoO show that strong dipole-forbidden
d−d excitations appear within the Mott gap at large wave vectors. These dominant excitations are highly anisotropic, and have [001] nodal directions for NiO. Theoretical analyses based on a novel, energy-resolved Wannier function (within the local density approximation+HubbardU) show that the anisotropy reflects the local exciton wave functions and local point-group symmetry. The sensitivity to weak symmetry breaking in particle-hole wave functions suggests a wide application to strongly correlated systems.
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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