Yazar "Yalçın, Orhan" için 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]. ... -
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 ... -
Origin of Cross-Over Phenomenon of Hysteresis Loops and High Absorption Loss Properties for Spinel Ferrite Nanoparticles
Yalçın, Orhan; Bayrakdar, Harun; Özüm, Songül (Polish Acad Sciences Inst Physics, 2021)Spinel ferrite nanoparticles have been synthesized by the surfactant-assisted hydrothermal route using cetyltrimethylammonium bromide (CTAB) and ethylenediaminetetraacetic acid (EDTA) in the NaOH solution. Temperature ... -
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 ... -
Synthesis and investigation of small g-values for smart spinel ferrite nanoparticles
Bayrakdar, Harun; Yalçın, Orhan; Özüm, Songül; Cengiz, Uğur (Elsevier Science Sa, 2021)Smart spinel and hexagonal ferrite nanoparticles (NPs) have been fabricated by ethylenediaminetetraacetic acid (EDTA) and cetyltrimethylammonium bromide (CTAB) assisted hydrothermal route by using NaOH solution. Electron ...
