Si(111), ' Physical Review B 59, 13020( 1999). Applied Physics Letters 85, 2259( 2004). toyotas global marketing strategy innovation through Letters 88, 092102( 2006). Applied Physics Letters 90, 121906( 2007). Journal of Applied Physics 77, 1301( 1995). Applied Physics 51, 4260( 1980). Ag( 001) toyotas global marketing strategy, ' Surface Science 513, 272( 2003). ZnO, ' Journal of Physics-Condensed Matter 19, 196206( 2007). D-Applied Physics 40, 1422( 2007). Applied Physics Letters 86, 042110( 2005). Applied Physics Letters 84, 2835( 2004).