Critical fluctuations and quenched disordered two-dimensional charge stripes in La5/3Sr1/3NiO4
學年 88
學期 2
出版(發表)日期 2000-04-01
作品名稱 Critical fluctuations and quenched disordered two-dimensional charge stripes in La5/3Sr1/3NiO4
作品名稱(其他語言)
著者 Hatton, P. D.; Ghazi, M. E.; Brown, S.; Cheong, S.-W.
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 Letters 84(17), pp.3911-3914
摘要 Using high-resolution x-ray scattering, we have demonstrated the existence of quenched disordered charge stripes in a single crystal of La5/3Sr1/3NiO4 at low temperatures. Above the second-order transition critical scattering was observed due to fluctuations into the charge stripe phase. The charge stripes are shown to be two dimensional in nature both by measurements of their correlation lengths (xi(a) approximate to 185 Angstrom, xi(b) = 400 Angstrom, and xi(c) approximate to 25 Angstrom) and by the critical exponents of the charge strip transition. The charge stripe orderings did not develop long-range order even at low temperatures, indicating that the charge stripes are disordered and that the length scale of the disorder is quenched.
關鍵字
語言 en
ISSN 1079-7114 0031-9007
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度
國別 USA
公開徵稿
出版型式 紙本 電子版
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