Measurements of sound velocity of laser-irradiated iron foils relevant to Earth core condition K. Shigemori, D. Ichinose, T. Irifune, K. Otani, T. Shiota, T. Sakaiya and H. Azechi Eur. Phys. J. D, 44 2 (2007) 301-305 Published online: 06 April 2007 DOI: 10.1140/epjd/e2007-00142-5