Observation of diamagnetic effect in BaSnO3 via low-temperature magneto-photoluminescence spectroscopyPeng Zhang, Fuhai Su, Jianming Dai, Kejun Zhang, Chao Zhang, Wei Zhou, Qinzhuang Liu and Li PiEPL, 106 6 (2014) 67005DOI: https://doi.org/10.1209/0295-5075/106/67005