Enhancement of the Peierls-like phase transition in the Cu1−xLixIr2S4 system Lei Zhang, Langsheng Ling, Zhe Qu, Changjin Zhang, Shun Tan and Yuheng Zhang EPL, 94 3 (2011) 37003 Published online: 14 April 2011 DOI: 10.1209/0295-5075/94/37003