Title of article :
Specific heat of ytterbium iron garnet Yb3Fe5O12 at low temperatures
Author/Authors :
BOUMALI, Abdelmalek Universite de Tebessa - Laboratoire de Physique Appliquee et Theorique (L P A T ), Algeria , DERAR, Oumhani Universite de Tebessa - Laboratoire de Physique Appliquee et Theorique (L P A T ), Algeria
Abstract :
The state of the Y b^3+ ion of the ytterbium iron garnet (Yb3 Fe5 O12) is suitable for the development of theoretical models with rather good approximations. Using the theory of two-level paramagnetic ions, the total and magnetic specific heat at low temperatures has been calculated. The influence of tensors g and G on the specific heat of YbIG has been examined. A comparison has been made of our results and those obtained with a model based on of the approximation of Weiss Molecular-Field (WMF) and experimental data.
Keywords :
Ytterbium iron garnet YbIG , specific heat
Journal title :
Turkish Journal of Physics
Journal title :
Turkish Journal of Physics
