%0 Journal Article %T Coexistence of the δl and δTc flux pinning mechanism in nano-Si doped MgB2 %A Ghorbani, Shaban Reza %A X. L. Wang %A M. S. H. Hossain %A S. X. Dou %A Sung-Ik Lee %J Superconductor Science and Technology %@ 0953-2048 %D 2010