Anomalous dynamic scaling of interfaces in disordered media

doi:10.1103/PhysRevE.59.234

淡江大學機構典藏 > 理學院 > 物理學系暨研究所 > 期刊論文 > Item 987654321/72679

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題名:	Anomalous dynamic scaling of interfaces in disordered media
作者:	Pang, Ning-ning;Tzeng, Wen-jer
貢獻者:	淡江大學物理學系
日期:	1999-01
上傳時間:	2013-07-09 15:11:34 (UTC+8)
出版者:	College Park: American Physical Society
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#
關聯:	Physical Review E (Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics) 59(1), pp.234-238
DOI:	10.1103/PhysRevE.59.234
顯示於類別:	[物理學系暨研究所] 期刊論文

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