Search for the magnetocaloric effect in multiferroics oxides
  In this paper, we report on the magnetocaloric properties of some selected multiferroic oxides, namely HoMn2O5 and La2(Ni,Co)MnO6 compounds which exhibit transition points from 10K up to almost room temperature. In order to avoid grain boundary effects and structural inhomogeneity observed frequently in polycrystalline samples, only single crystals were considered for this study. 
M. Balli, D. Matte, S. Jandl, P. Fournier, M. M. Gospodinov
cond-mat.mtrl-sci