HEDS Poster

[HEDSp-09] Femtosecond X-ray Imaging of Ultrafast Dislocations in Shocked Diamond

*K. Katagiri^1,2,3,4,5, T. Pikuz⁶, L. Fang^1,2,3, B. Albertazzi⁷, S. Egashira⁵, Y. Inubushi^8,9, G. Kamimura⁴, R. Kodama^4,5,6, M. Koenig^4,7, B. Kozioziemski¹⁰, G. Masaoka⁴, K. Miyanishi⁹, H. Nakamura⁴, M. Ota ⁵, G. Rigon¹¹, Y. Sakawa⁵, T. Sano⁵, F. Schoofs¹², Z. J. Smith¹³, K. Sueda⁹, T. Togashi^8,9, T. Vinci⁷, Y. Wang^1,2,3, M. Yabashi^8,9, T. Yabuuchi^8,9, L. E. Dresselhaus-Marais^1,2,3, N. Ozaki^4,5 (1. Department of Materials Science & Engineering, Stanford University, 2. SLAC National Accelerator Laboratory, 3. PULSE Institute, Stanford University, 4. Graduate School of Engineering, Osaka University, 5. Institute of Laser Engineering, Osaka University, 6. Institute for Open and Transdisciplinary Research in Initiatives, Osaka University, 7. LULI, CNRS, CEA, Ecole Polytechnique, UPMC, Univ Paris 06: Sorbonne Universites, Institut Polytechnique de Paris, 8. Japan Synchrotron Radiation Research Institute, 9. RIKEN SPring-8 Center, 10. Lawrence Livermore National Laboratory , 11. Department of Physics, Nagoya University, 12. United Kingdom Atomic Energy Authority, Culham Science Centre , 13. Department of Applied Physics, Stanford University)

The maximum speed of dislocation motions in a crystal was thought to be limited by the transverse sound speed of the crystal. Theoretical studies, however, indicate that the dislocations can move faster than transverse sound speed if they are created at such high speeds.