Sharp interface model for solid-state dewetting problems with weakly anisotropic surface energies

Yan Wang,1 Wei Jiang,2,* Weizhu Bao,1,3 and David J. Srolovitz4 1Department of Mathematics, National University of Singapore, Singapore, 119076 2School of Mathematics and Statistics, Wuhan University, Wuhan 430072, China 3Center for Computational Science and Engineering, National University of Singapore, Singapore, 119076 4Departments of Materials Science and Engineering and Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA (Received 28 July 2014; revised manuscript received 13 November 2014; published 12 January 2015)