1. Microsystems
Laboratory, Institute of Microtechnique, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
2. Department
of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Blk EA, #03-09, Singapore 117575
3. Data Storage Institute, A*STAR (Agency for Science,
Technology and Research), 2 Fusionopolis Way, #08-01, Innovis 138634, Singapore