1. Institute of Physics of Advanced Materials; Ufa State Aviation Technical University; 12 K. Marx St. Ufa 450008 Russia
2. Materials Research Group; Faculty of Engineering and the Environment; University of Southampton; Southampton SO17 1BJ UK
3. Laboratory for Mechanics of Bulk Nanomaterials; Saint Petersburg State University; 28 Universitetsky pr., 198504 Peterhof Saint Petersburg Russia
4. Departments of Aerospace and Mechanical Engineering and Materials Science; University of Southern California; Los Angeles California 90089-1453 USA