科研之友
微信
新浪微博
Facebook
分享链接
摘要
A systematic study focusing on the magnetic and transport properties of Mn0.48Si0.52 semiconductor films is performed. The Mn0.48Si0.52 films show superparamagnetism above 17 K. The temperature dependence of the electrical transport reveals that electron-electron and electron-phonon interactions dominate the conductivity of weakly localized carriers. Very small negative magnetoresistance suggests that spin-dependent scattering between conductive carriers and local magnetic moments of Mn atoms is rather weak. On the contrary, the anomalous Hall effect due to the skew scattering is observed in the whole temperature range, indicating the spin-orbit coupling of the conducting carriers is significantly strong.
