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:Comparison of electronic structures of orthorhombic and hexagonal manganites studied by X-ray absorption spectroscopy
學年93
學期2
出版(發表)日期2005/06/01
作品名稱Comparison of electronic structures of orthorhombic and hexagonal manganites studied by X-ray absorption spectroscopy
作品名稱(其他語言)
著者Asokan, A.; Dong, C. L.; Bao, C. W.; Tsai, H. M.; Chiou, J. W.;張經霖; Chang, C. L.; 彭維鋒; Pong, W. F.; Duran,P.; Moure, C.; Pena,O.
單位淡江大學物理學系
出版者Elsevier
著錄名稱、卷期、頁數Solid State Communications 134(12), pp.821-826
摘要Electronic structures of orthorhombic perovskite-type manganites (OM) and hexagonal manganites (HM) are compared by using X-ray absorption near edge structure spectroscopy. This study reveals that the environments around Mn and O ions in both the systems are different. These are reflected primarily in the lifting of degeneracy of the Mn 3d orbitals. Interestingly, the unoccupied Mn 3dx2−y2 orbital in HM is strongly hybridized with O 2p states and appears to be responsible for both long range orderings: ferroelectric ordering at high temperatures and ferromagnetic ordering at low temperatures.
關鍵字A. Manganites;C. XANES;D. Electronic structure;E. X-ray absorption spectroscopy
語言英文
ISSN0038-1098
期刊性質國內
收錄於
產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
出版型式,電子版
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