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Low-temperature magnetic properties of the 2D molecular ferrimagnet N(n-C5H11)4 [FeIIFeIII(C2O4)3] |
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| Authors: | L Bottyán L Kiss N S Ovanesyan A A Pyalling N A Sanina A B Kashuba |
| Institution: | (1) KFKI, Research Institute for Particle and Nuclear Physics, 1525 Budapest, P. O. B. 49, Hungary;(2) Institute for Solid State Physics and Optics, 1525 Budapest, P. O. B. 49, Hungary;(3) Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, Moscow Region, Russia;(4) L. D. Landau Institute of Theoretical Physics, Russian Academy of Sciences, 142432 Chernogolovka, Moscow Region, Russia |
| Abstract: | 57Fe Mössbauer and magnetometric studies of the molecular ferrimagnet N(n-C5H11)4 FeIIFeIII(C2O4)3] are indicative of a 2D magnetic character with strong uniaxial anisotropy in the basal plane of the crystal. It is established that the change in the sign of the net magnetization of this compound is related to a compensation between FeIII and FeII sublattice magnetizations at T comp=31.2 K. The form and parameters of the magnetic Hamiltonian describing the temperature dependence of the FeIII sublattice and the net magnetizations are determined. |
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