Publications and Research
Document Type
Article
Publication Date
2010
Abstract
Ordering in realistic elongated box-shape crystals of the molecular magnet Mn_12 Ac is investigated with the site-resolved mean-field approximation that does not assume a uniform ordering. It is shown that ferromagnetic ordering should not occur in crystals with the aspect ratio up to 12. Instead, for the aspect ratio about 6, the inner and outer regions of the crystal order in different directions, uniformly along its length. Finding ordering temperature by extrapolating the inverse susceptibility curve does not provide a correct T_C.
Comments
This work was originally published in Physical Review B - Condensed Matter and Materials Physics, available at DOI: 10.1103/PhysRevB.81.220408