Spin- and valley-dependent transport properties for metal-silicene-metal junctions Pan Wang, Ma Zhou, Guang Liu, Yiman Liu, Meng-Qiu Long and Guanghui Zhou Eur. Phys. J. B, 88 9 (2015) 243 Published online: 28 September 2015 DOI: 10.1140/epjb/e2015-60316-x