Lattice vibrational spectra of double-helix LiPHui Wang, Tongwei Li, Zhenlong Lv, Weiwei Ju, Xiaoyan Zhao, Jinghan You, Liben Li, Xiaowu Cai and Han HanEPL, 105 1 (2014) 16001DOI: https://doi.org/10.1209/0295-5075/105/16001