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6 papers · 1 filter
An improved effective field theory formulation of spin-1/2 Ising systems with arbitrary coordination number z
Ümit Akıncı
An improved unified formulation based on the effective field theory is introduced for a spin-1/2 Ising model with nearest neighbor interactions with arbitrary coordination number z…
Critical behavior and phase diagrams of a spin-1 Blume-Capel model with random crystal field interactions: An effective field theory analysis
Yusuf Yüksel, Ümit Akıncı, Hamza Polat
A spin-1 Blume-Capel model with dilute and random crystal fields is examined for honeycomb and square lattices by introducing an effective-field approximation that takes into accou…
Anomalies in the Multicritical Behavior of Staggered Magnetic and Direct Magnetic Susceptibilities of Iron Group Dihalides
Gulpinar Gul, Vatansever Erol
In this study, the temperature dependencies of magnetic response functions of the anhydrous dihalides of iron-group elements are examined in the neighborhood of multi-critical poin…
Critical Behavior of AC Antiferromagnetic and Ferromagnetic Susceptibilities of a Spin-1/2 Metamagnetic Ising System
Gul Gulpinar, Vatansever Erol
In this study, the temperature variations of the equilibrium and the non-equilibrium antiferromagnetic and ferromagnetic susceptibilities of a metamagnetic system are examined near…
Effective field theory analysis of 3D random field Ising model on isometric lattices
Ümit Akıncı, Yusuf Yüksel, Hamza Polat
Ising model with quenched random magnetic fields is examined for single Gaussian, bimodal and double Gaussian random field distributions by introducing an effective field approxima…
Kinetic Blume-Capel Model with Random Diluted Single-ion Anisotropy
Gul Gulpinar, Erol Vatansever
This investigation employs a square lattice and Glauber dynamics methodology to probe the effects of diluteness in the crystal-field interaction in a Blume-Capel Ising system under…