%0 Journal Article %T Flux-pinning mechanism in silicone-oil-doped MgB2: Evidence for charge-carrier mean free path fluctuation pinning %A Ghorbani, Shaban Reza %A X.L. Wang %A S. X. Dou %A Sing-IK Lee %A M.S.A. Hossain %J Physical Review B %@ 2469-9950 %D 2008