教師資料查詢 | 類別: 期刊論文 | 教師: 林大欽 LING, DAH-CHIN (瀏覽個人網頁)

標題:Metal-Nonmetal Transition in Rubidium Tungsten Bronze RbxWOy
學年91
學期1
出版(發表)日期2002/12/01
作品名稱Metal-Nonmetal Transition in Rubidium Tungsten Bronze RbxWOy
作品名稱(其他語言)
著者Ting, L. C.; Hsieh, H. H.; Huang, C. T.; Wang, C. B.; Ling, D. C.; Huang, K. J.; Chang, S. J.; Kang, H. H.; Chien, F. Z.; Hor, P. H.
單位淡江大學物理學系
出版者New York: Kluwer Academic Publishers-Plenum Publishers
著錄名稱、卷期、頁數Journal of Superconductivity 15(6), pp.675-678
摘要An oxygen concentration dependent metal–nonmetal (MN) transition was observed for Rb0.23WO y with 2.80 < y < 3.08. As 2.80 < y < 3.0, the room temperature resistivity (ρRT) of the Rb0.23WO y is about 5 × 10−4Ω cm. While in the case of y > 3.04, the ρRT of the Rb0.23WO y exhibits a four orders of magnitude increase with a value of 5 Ω cm. Correspondingly, the lattice constant along c-direction slightly shortens as oxygen concentration increases from 2.80 to 3.08. The observed results suggest that the hybridization between W 5d (t2g) and O 2p orbitals might be responsible for the MN transition. In addition, similar measurements were performed for Rb x WO3.04 and Rb x WO2.85 with 0.19 < x < 0.27. No rubidium concentration dependent MN transition was observed, indicating the electronic structure of the host WO y is not modified significantly by varying the soluble rubidium concentration.
關鍵字
語言英文
ISSN1572-9605;1557-1939
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;紙本
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