Latent heat at the spin-reorientation of the weak ferromagnet Fe3BO6

1 January 1976

proceedings article
Published by AIP Publishing in AIP Conference Proceedings

Vol. 29 (1) , 443-444
https://doi.org/10.1063/1.30381

Abstract

The latent heat L at the spontaneous spin‐reorientation of the weak ferromagnet Fe3BO6 has been measured with a sensitive differential scanning calorimeter (dsc). For single crystals we find L=5.1 J/mol. The transition is endothermic on heating. We have also calculated L from the temperature dependence of the energy necessary to rotate the spins with an applied field from the easy to the hard axis. We obtain L−5.2 J/mol from magnetization curves near Tsr. The spontaneous transition is found to be a continuous one with a width of about 1 K. The field dependence of the transition temperature as determined with the dsc agrees well with the one determined by magnetization measurements.

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