Pressure-induced phase transition for single-crystalline LaO0.5F0.5BiSe2 Masaya Fujioka, Masashi Tanaka, Saleem J. Denholme, Takuma Yamaki, Hiroyuki Takeya, Takahide Yamaguchi and Yoshihiko Takano EPL, 108 4 (2014) 47007 Published online: 21 November 2014 DOI: 10.1209/0295-5075/108/47007