1. Department of Microengineering and Nanoelectronics, Universiti Kebangsaan Malaysia, Malaysia, Institute of Applied Physics, Vienna University of Technology, Wien, Austria, AC2T Austrian Center of Competence for Tribology, Wiener Neustadt, Austria, email: gebeshuber@iap.tuwien.ac.at
2. Defence Metallurgical Research Laboratory, PO: Kanchanbagh, Hyderabad, India, email: manish@dmrl.drdo.in