期刊論文

標題 Energy dependence of commensurate neutron scattering peak in the doped two-leg ladder antiferromagnet Sr14-xCaxCu24O41
學年 91
學期 2
出版(發表)日期 2003/03/01
作品名稱 Energy dependence of commensurate neutron scattering peak in the doped two-leg ladder antiferromagnet Sr14-xCaxCu24O41
作品名稱(其他語言)
著者 He, Jianhui; Feng, Shiping; 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) 67(9), 094402(6 pages)
摘要 The dynamical spin response of doped two-leg ladder antiferromagnets is investigated based on the fermion-spin approach. Our calculations clearly demonstrate a crossover from incommensurate antiferromagnetism in the weak-interchain-coupling regime to commensurate spin fluctuation in the strong-interchain-coupling regime. In particular, the nuclear spin-lattice relaxation rate extracted from the commensurate spin fluctuation decreases exponentially with decreasing temperatures. The behaviors of the spin dynamics in the strong-coupling regime are quantitatively close to the experimental results of Sr14-xCaxCu24O41.
關鍵字
語言 英文
ISSN 1098-0121
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