教師資料查詢 | 類別: 期刊論文 | 教師: 陳惟堯 CHEN, WEI-YEU (瀏覽個人網頁)

標題:Quantum phonons and the Peierls transition temperature
學年90
學期1
出版(發表)日期2002/01/01
作品名稱Quantum phonons and the Peierls transition temperature
作品名稱(其他語言)
著者Zheng, H.; Zhu, S. Y.; Chen, Wei- yeu
單位淡江大學物理學系
出版者College Park: American Physical Society
著錄名稱、卷期、頁數Physical Review B (Condensed Matter and Materials Physics) 65(1), 014304(8 pages)
摘要The effect of quantum phonons on the Peierls transition temperature in a one-dimensional commensurate system is studied. The nonadiabatic effect due to finite phonon frequency ωp>0 are treated through an energy-dependent electron-phonon scattering function δ(k′,k). By using the Green’s-function perturbation theory we have shown that our theory gives a good description of the effect of quantum phonons: (i) There exists a critical electron-phonon coupling gc2. The Peierls transition temperature Tp=0 when the coupling g2<gc2 and Tp increases with increasing g2>gc2. (ii) The ratio 2Δ/Tp could be much larger than the BCS value 3.527.
關鍵字
語言英文
ISSN1098-0121
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
出版型式紙本
相關連結
Google+ 推薦功能,讓全世界都能看到您的推薦!