Hong Kong Polytechnic University, Department of Engineering, Kowloon, Hong Kong, China; Oak Ridge National Laboratory, Metals and Ceramics Division, PO Box 2008, TN 37831-6115, USA, Email: mmct8tc@inet.polyu.edu.hk
Materials Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan, Email: mishima@materia.titech.ac.jp
D. Morris
Department of Physical Metallurgy, CENIM, CSIC, Avenida Gregorio del Amo 8, 28040 Madrid, Spain, Email: david.morris@cenim.csic.es
V. Paidar
Institute of Physics, Academy of Sciences, Na, Slovance 2, 182 21 Praha 8, Czech Republic, Email: paidar@fzu.cz