1. University of Alberta,Department of Physics,Edmonton,Alberta,Canada,T6G 2E1
2. NRC-NANO,Edmonton,Alberta,Canada,T6G 2M9
3. University of Alberta,Department of Computer Science,Edmonton,Alberta,Canada,T6G 2E8
4. University of Alberta,Department Electrical and Computer Engineering,Edmonton,Alberta,Canada,T6G 1H9
5. Center for Emergent Matter Science,RIKEN,Hatoyama,Saitama,Japan,350-0395
6. Hitachi Adv. Res. Lab,Hatoyama,Saitama,Japan,350-0395
7. CEOS GmbH,Heidelberg,Germany,D-69186