Dewetting in immiscible polymer bilayer films

J. Lal,1,2,3 S. Malkova,2 M. K. Mukhopadhyay,4 S. Narayanan,1 A. Fluerasu,5 S. B. Darling,6 L. B. Lurio,3 and M. Sutton7 1X-ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA 2Intense Pulsed Neutron Source, Argonne National Laboratory, Argonne, Illinois 60439, USA 3Department of Physics, Northern Illinois University, DeKalb, Illinois 60115, USA 4Department of Physics, University of California, San Diego, La Jolla, California 92093-0354, USA 5NSLS-II, Brookhaven National Laboratory, Upton, New York 11973, USA 6Nanoscience and Technology Division, Argonne National Laboratory, Argonne, Illinois 60439, USA 7Physics Department, McGill University, Montréal, Canada H3A 2T8 (Received 27 April 2016; revised manuscript received 28 November 2016; published 19 June 2017)