Band-gap modulations of armchair silicene nanoribbons by transverse electric fields Yu-Ling Song, Shuai Zhang, Dao-Bang Lu, Hai-ru Xu, Zhuo Wang, Yu Zhang and Zhi-Wen Lu Eur. Phys. J. B, 86 12 (2013) 488 Published online: 02 December 2013 DOI: 10.1140/epjb/e2013-31078-4