Ex) Article Title, Author, Keywords
New Physics: Sae Mulli 2010; 60: 1224-1229
Published online November 30, 2010 https://doi.org/10.3938/NPSM.60.1224
Copyright © New Physics: Sae Mulli.
Na Ri JUNG1, Hyun-Joo KIM1*, Yeon-Mu CHOI2
1Department of Physics Education, Korea National University of Education, Cheongwon 363-791
2Bangmok College of Basic Studies, Myongji University, Yongin 449-728
The dynamic scaling behavior of a growing self-affine fractal interface is examined by using a simple experiment with two glass plates. We put one glass plate on the other and immerse the edge of the two up plates in a black-ink dye solution; then, the evolution of the interface formed between the ink solution and the air by capillary action is photographed with a CCD camera as a function of time. We found that the interface width scaled with system size L as W(L) ~ L αwith α? 0.48 and scale with time as W(t ) ~ t βwith β? 0.37. These results of this experiment demonstrate that interface roughening belongs to the Kardar-Parisi-Zhang universality class. Thus, the theoretical results for surface growth in random noise are confirmed by the experiment.
Keywords: Experiment of fluctuating interface, Surface growth, Power law, Universality class