Spin Transport in Lithiated Silicene (Silicel)

Abstract

In this article, we have investigated spin polarized electronic transport in Lithiated Silicene (silicel) using semi-classical Monte-Carlo approach. Monte Carlo simulations are used to model spin transport along with spin density matrix calculations in the semiconductor devices. Dephasing of the spin vectors in Lithiated Silicene is due to D'yakonov-Perel (DP) and Elliott-Yafet (EY) relaxation mechanisms. In this article, we theoretically studied spin polarized electronic transport along the length of the Lithiated Silicene structure and the spin dephasing length is estimated to be in the range of 2 um for Lithiated Silicene. Next, we investigated the ensemble averaged spin vector variation along the length of the Lithiated Silicene with varying temperature. We observe a negligible variation in the spin dephasing length in the temperature range of 4 K to 373 K. As the temperature increases from 1000 K to 10000 K, we find a decrease in the spin dephasing length. In our study, we find that Lithiated Silicene is a promising candidate for next generation spintronics devices.