David. G. Pettifor, Department of Materials, University of Oxford, Oxford, OX1 3PH, UK
Ralf Drautz, Interdisciplinary Centre for Advanced Materials Simulation, Ruhr University, 44780 Bochum, Germany
Arthur F. Voter, Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
Kaoru Ohno, Department of Physics, Yokohama National University, Yokohama 240-8501, Japan
Steven D. Kenny, Department of Mathematical Sciences, Loughborough University, Leicestershire, LE11 3TU, UK
Benjamin Hourahine, Department of Physics, University of Strathclyde, John Anderson Building,107 Rottenrow, Glasgow G4 0NG, UK