Eur. Phys. J. B 10, 761-766 (1999)
https://doi.org/10.1007/s100510050906

Spontaneous surface magnetisation of single crystal MnF₂ in the antiferromagnetic state

¹ International Laboratory of High Magnetic Fields and Low Temperatures, Gajowicka 95, 53-421 Wroclaw, Poland
² Institute of Low Temperature and Structural Research, Polish Academy of Sciences, P.O. Box 937, 50-950 Wroclaw, Poland

Corresponding author: ^a nizhan@alpha.mlspmint.pan.wroc.pl

Received: 28 August 1998
Revised: 15 December 1998
Published online: 15 August 1999

Abstract

Spontaneous magnetisation of (100) and (010) surfaces of single crystal MnF₂ in the antiferromagnetic state has been discovered. The sign of the surface magnetisation is determined by the difference in dielectric constants ε of MnF₂ and ambient matter: magnetisation is directed to the substance with smaller ε.