A nanofilm rotation method is developed to study the rotation of nanograins and the formation of various low energy interfaces. Epitaxial (100), (110), (111) and (112) NiO nanofilms are prepared by ion beam sputtering onto the (100), (110), (111) and (112) surfaces of NaCl single crystal. By overlapping of the above films with an angle difference, and annealing at relatively low temperatures 100 ¢Jthe nanograins are induced to rotate till a metastable interface is reached. The rotation process and the metastable interfaces are determined by transmission electron microscopy. Many new interfaces between mixed planes are found, and their orientation relationships and structures are analyzed. The study discovered eight groups of metastable orientation relations, respectively, which have not been reported in literatures. 2¡¦ orientation relationship is [11 ]( 10)//[01 ]( 11) 2¡¦¡¦ orientation relationship is [00 ]( 10)//[ 0 ]( 11) 4e1 orientation relationship is [13 ]( 12)//[110](00 1) 4¡¦ orientation relationship is [1 1]( 12)//[0 0](00 1) 4e2 orientation relationship is [13 ]( 12)//[100](00 1) 5¡¦ orientation relationship is [ 1 ]( 12)// [01 ] ( 11) 6¡¨ orientation relationship is [110]( 12)// [001] ( 10) 6¡¦¡¦¡¦ orientation relationship is [110]( 12)// [ 1] ( 10)

A nanofilm rotation method is developed to study the rotation of nanograins and the formation of various low energy interfaces. Epitaxial NiO and Ag nanofilms are prepared by ion beam sputtering onto the (100), (110), (111) and (112) surfaces of NaCl single crystal. By overlapping of the above films with an angle difference, and annealing at relatively low temperatures the nanograins are induced to rotate till a stable interface is reached. The rotation process and the stable interfaces are determined by transmission electron microscopy. Many new interfaces between mixed planes are found, and their orientation relationships and structures are analyzed. The rotation speed increase with temperature and is fast above 200oC.

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This research deals with the synthesis and characterization (transmission electron microscopy and optical spectroscopy) of composite nanocondensates produced by pulse laser ablation (PLA) on Zn, Zn-Cu and Cu-Au targets in liquid or vacuum. First, wurtzite-type (W)-ZnO and