Yazar "Erdem, Rıza" için Bildiri Koleksiyonu listeleme
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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 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 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 ... -
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 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 ...