Piezomagnetism of FeSe single crystals V. D. Fil, D. V. Fil, K. R. Zhekov, T. N. Gaydamak, G. A. Zvyagina, I. V. Bilich, D. A. Chareev and A. N. Vasiliev EPL, 103 4 (2013) 47009 Published online: 16 September 2013 DOI: 10.1209/0295-5075/103/47009