Spontaneous surface magnetisation of single crystal MnF2 in the antiferromagnetic state V. I. Nizhankovskii, A. I. Khar'kovskii and A. J. Zaleski Eur. Phys. J. B, 10 4 (1999) 761-766 Published online: 15 August 1999 DOI: 10.1007/s100510050906