Compensation temperatures induced by longitudinal fields in a mixed spin Ising ferrimagnet

✍ Scribed by Hadey K. Mohamad; E.P. Domashevskaya; A.F. Klinskikh

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 603 KB
• Volume: 150
• Category: Article
• ISSN: 0038-1098
• DOI: 10.1016/j.ssc.2010.03.033

✦ Synopsis

We have calculated the free energy of a mixed spin Ising ferrimagnetic model from a mean field approximation of the Hamiltonian. By minimizing the free energy, we obtain the equilibrium magnetizations and the compensation points. A mixed spin-2 and spin-5/2 Ising ferrimagnet with different single-ion anisotropies on a simple cubic lattice (z = 6) is studied. We have used a mean field method and found that the anisotropy of the mixture plays an important role as regards the existence and location of compensation points. The existence of a compensation temperature and its dependence on the external field are the main focus of investigation.