Anomalous elastic response of silicon to uniaxial shock compression on nanosecond time scales. by Loveridge-Smith, A, Allen, A, Belak, J, Boehly, T, Hauer, A, Holian, B, Kalantar, D, Kyrala, G, Lee, R, Lomdahl, P, Meyers, M, Paisley, D, Pollaine, S, Remington, B, Swift, D, Weber, S, Wark, J