Superconducting properties of BiSe2-based LaO1−xFxBiSe2 single crystals Jifeng Shao, Zhongheng Liu, Xiong Yao, Lei Zhang, Li Pi, Shun Tan, Changjin Zhang and Yuheng Zhang EPL, 107 3 (2014) 37006 Published online: 04 August 2014 DOI: 10.1209/0295-5075/107/37006