Yazar "Erdem, Rıza" için listeleme
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Determination of the steady-state kinetics in a spin-1 Ising model using path probability method
Özüm, Songül; Erdem, Rıza (World Scientific Publ Co PTE Ltd, 2020)As a continuation of our previously published work, we propose a theoretical framework for the determination of steady-state kinetics in a spin-1 Ising model by the path probability method. The framework is based on the ... -
Dipolar and Quadrupolar Hysteresis in Core-Surface Magnetic Nanoparticles
Özüm, Songül; Yalçın, Orhan; Erdem, Rıza (2019)Blume-Emery-Griffiths (BEG) model [1] is used to investigate the hysteretic behaviour of dipole (M) and quadrupole ordering (Q) properties peculiar to core/surface (C/S) type hexagonal Ising nanoparticles (HINPs) [2-3]. ... -
Dynamic susceptibility for a spin-1 Isingmodel using the path probability method
Özüm, Songül; Erdem, Rıza (Niğde Ömer Halisdemir University, 2019)The nonlinear rate equations based on the path probability method is used to derive the dynamic (or complex) susceptibility ( ) for a spin-1 Ising model with bilinear and biquadratic interactions when the external magnetic ... -
Hysteretic behavior of quadrupolar ordering in a 2D magnetic spin˗1 Ising nanoparticle
Erdem, Rıza; Yalçın, Orhan; Özüm, Songül; Şahin, Ayşe; Demirer, Nazlı (Physical Society of the Republic of China, 2021)Pair approximation technique has been used to study the quadrupolar ordering properties for the 2D magnetic spin-1 Ising nanoparticles, consisting of core and surface parts with an interface coupling. Similar to the magnetic ... -
Hysteretic dipolar and quadrupolar properties of the spin-1 Blume-Emery-Griffiths model under pair approximation
Özüm, Songül; Erdem, Rıza; Yalçın, Orhan; Görgülüer, Ömer (World Scientific, 2021)As a continuation of previously published work [A. Erdinç and M. Keskin, Int. J. Mod. Phys. B 18, 1603 (2004), doi:10.1142/S0217979204024823] the hysteretic properties of magnetization (m) and quadrupolar moment (q) have ... -
Hysteretic properties of magnetization and quadrupolar moment in the blume-emery-griffiths model under the pair approximation
Özüm, Songül; Görgülüer, Ömer; Erdem, Rıza; Yalçın, Orhan (L.N. Gumilyov Eurasian National University, 2020)The magnetic hysteresis (M-H) and quadrupole hysteresis (Q-D) loops have been investigated for the Blume-Emery-Griffiths (BEG) model using the pair approximation. The observed curves strongly depend on biquadratic exchange ... -
Ising-like model for the two-step spin-crossover systems: Static properties with magnetic field effects using cluster variation method
Veliu, Valon; Erdem, Rıza; Özüm, Songül; Yalçın, Orhan (Institute of Molecular Physics, Polish Academy of Sciences Faculty of Physics, Adam Mickiewicz University, Poznań, 2021)We investigate the static properties of a two−sublattice Ising−like Hamiltonian for spin-crossover (SCO) systems in the presence of an external magnetic field. Self−consistent equations are obtained using cluster variation ... -
Nanosized Monolayer on Square Lattice within Spin-1 Ising Model: Hysteretic Properties with Odd Interactions
Özüm, Songül; Kavlak, Ramazan; Erdem, Rıza; Yalçın, Orhan (Polish Acad Sciences Inst Physics, 2021)The hysteretic properties of a nanosized monolayer on the square lattice have been studied based on the spin-1 Ising model, including a single-ion anisotropy (D) and dipolar-quadrupolar (or odd, L) interaction parameters ... -
Nanosized monolayer on the square lattice within spin-1 ising Model: Hysteretic properties with odd interactions
Kavlak, Ramazan; Özüm, Songül; Erdem, Rıza; Yalçın, Orhan (L.N. Gumilyov Eurasian National University, 2020)We propose a theoretical framework for the investigation of M-H and Q-D hysteresis loops for the nanosized monolayer on the square lattice within spin-1 Ising model Hamiltonian with dipolar (J), quadrupolar (K), ... -
Nanosized Monolayer on the Square Lattice within Spin-1 Ising Model: Magnetic Properties with odd Interactions
Kavlak, Ramazan; Özüm, Songül; Erdem, Rıza; Yalçın, Orhan (2020)Based on the spin-1 Ising model Hamiltonian with dipolar (bilinear, J), quadrupolar, (biquadratic, K), dipolar-quadrupolar (odd, L) interactions and single-ion anisotropy parameter (D), magnetic properties of the nanosized ... -
Relaxation times obtained from the rate equations using path probability method for the spin-1 Ising model
Erdem, Rıza; Özüm, Songül (World Scientific Publishing Co. Pte Ltd, 2019)We have presented the time-dependent behaviors of a spin-1 Ising model (with both bilinear and biquadratic interactions) in the neighborhood of the equilibrium states via the path probability method. The rate equations as ... -
Spin-1 Ising modelinde manyetik dağılganlık bağıntısı ve manyetik sönüm faktörünün yol olasılık metodu ile hesaplanması
Özüm, Songül; Erdem, Rıza (2019)Bu çalışmada, önceki çalışmamızın [1] devamı olarak, manyetik alan altında bilineer (J) ve bikuadratik (K) etkileşme Hamiltonyenli spin-1 Ising Modeli [2, 3] için dinamik (yani kompleks) alınganlık ifadesi X= X¹ iX²[4, ... -
Spin-1 Ising sisteminde Manyetizasyon ve Kuadrupol Moment durulma sürelerinin Yol Olasılık Metodu ile hesaplanması
Özüm, Songül; Erdem, Rıza (Bilkent Üniversitesi, 2018-12-21)Bu çalışmada, bilineer (J) ve bikuadratik (K) etkileşme Hamiltonyenli spin-1 Ising sistemi [1] için-durulma (dinlenme veya gevşeme olarak ta adlandırılır) süreleri denge-dışı istatistik meka-niksel-yaklaşımlardan yol ... -
Static and dynamic properties of two-sublattice spin-crossover systems
Yalçın, Orhan; Veliu, Valon; Özüm, Songül; Erdem, Rıza (Elsevier B.V., 2022)We investigate the static and dynamic properties of spin-crossover systems in the presence of an external magnetic field using two-sublattice Ising-like Hamiltonian. At low temperatures both sublattices are in the LS state, ... -
Static properties of spin-crossover with magnetic interaction of Spin-1 Blume-Emery-Griffiths model for two-sublattices
Veliu, Valon; Özüm, Songül; Yalçın, Orhan; Erdem, Rıza (2022)The static properties of the spin-1 Blume-Emery-Griffiths (BEG) model for two-sublattices with the presence of an external magnetic field for spin-crossover (SCO) and magnetic ordering are presented. To study the static ...
