Scopus
YÖKSİS Eşleşti
Green's function approach of an anisotropic Heisenberg ferrimagnetic system
Journal of Magnetism and Magnetic Materials · Ekim 2013
YÖKSİS Kayıtları
Green s function approach of an anisotropic Heisenberg ferrimagnetic system
Journal of Magnetism and Magnetic Materials · 2013 SCI-Expanded
PROFESÖR GÜLİSTAN MERT →
Makale Bilgileri
DergiJournal of Magnetism and Magnetic Materials
Yayın TarihiEkim 2013
Cilt / Sayfa347 · 105-110
Scopus ID2-s2.0-84884784283
Özet
We have investigated the influence of the exchange anisotropy parameter on the magnetization, critical and compensation temperatures and susceptibility of the anisotropic Heisenberg ferrimagnetic system with the single-ion anisotropy under an external magnetic field using the double-time temperature-dependent Green's function theory. In order to decouple the higher order Green's functions, Anderson-Callen's decoupling and random phase approximations have been used. This model is useful for understanding the temperature dependence of total magnetization of Lithium-chromium ferrites Li0.5Fe 1.25Cr1.25O4 for which negative magnetization is characteristic. We observe that the critical temperature increases when the exchange anisotropy increases. When the system is under an external magnetic field, one obtains the first-order phase transition where the magnetization jumps for all the values of the exchange anisotropy parameters. © 2013 Elsevier B.V.
Yazarlar (1)
1
Gülistan Mert
ORCID: 0000-0003-0351-1036
Anahtar Kelimeler
Anisotropic Heisenberg model
Compensation point
Ferrimagnetic system
Green's function
Kurumlar
Selçuk Üniversitesi
Selçuklu Turkey
Metrikler
7
Atıf
1
Yazar
4
Anahtar Kelime