Anomalous dynamic scaling of interfaces in disordered media
學年 87
學期 1
出版(發表)日期 1999-01-01
作品名稱 Anomalous dynamic scaling of interfaces in disordered media
作品名稱(其他語言)
著者 Pang, Ning-ning; Tzeng, Wen-jer
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 E (Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics) 59(1), pp.234-238
摘要 We study a recently introduced stochastic growth model for interfacial depinning with quenched disorder in 111 dimensions. We numerically investigate the dynamic correlations of the interface roughening process by studying the qth order equal-time height difference correlation functions. We find that this system does not consist of multiscaling behaviors, in contrast to the molecular-beam-epitaxy motivated growth models with annealed noise, although it does exhibit anomalous dynamic scaling and spatiotemporal intermittency. Moreover, we also investigate the influence of different boundary conditions on the global width of the system. For small system sizes, the discrepancy between the obtained global widths with different boundary conditions will moderately alter the value of the roughness exponent. We propose a modified definition of the global width and quantitatively show that this modified definition is more universal for the systems with different boundary conditions and, thus, more applicable to the experimental measurements. @S1063-651X~99!10001-1#
關鍵字
語言 en
ISSN 1063-651X
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
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