Theoretical investigations of magnetic properties of ferromagnetic single‐layered nanobelts

Mi, Bin-Zhou; Wang, Huaiyu; Zhou, Yichao

doi:10.1002/pssb.201046394

Cited by 12 publications

(7 citation statements)

References 46 publications

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“…The physical means of this fact is that while at low temperatures the system becomes hard magnet, with the increase of the temperature the hard magnet turn to soft magnet. These results are consistent with some experimental results [35][36][37][38][39][40][41].…”

Section: Hysteresis Behaviors Of Spin-1 Hin Systemsupporting

confidence: 93%

Hysteresis and compensation behaviors of spin-3/2 cylindrical Ising nanotube system

Kocakaplan

Keskín

2014

Journal of Applied Physics

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An effective-field theory with correlations has been used to study the hysteresis, susceptibility and compensation behaviors of the spin-1 hexagonal Ising nanowire (HIN) with core-shell structure. The effects of the temperature, crystal field, core-shell interfacial coupling and shell surface coupling are investigated on hysteresis and compensation behaviors, in detail. When the core-shell interfacial coupling is weak, the double and triple hysteresis loops can be seen in the system. The hysteresis loops have different coercive field points that the susceptibility make peak at these points. Moreover, we observed that the system displays the Q-, R-, S-, P-, N-and W-types of compensation behaviors according to Neél classification nomenclature.Finally, the obtaining results are compared with some experimental and theoretical results and found a good agreement.

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Section: Hysteresis Behaviors Of Spin-1 Hin Systemsupporting

confidence: 93%

Hysteresis and compensation behaviors of spin-3/2 cylindrical Ising nanotube system

Kocakaplan

Keskín

2014

Journal of Applied Physics

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Section: Hysteresis Behaviors Of Spin-1 Hin Systemsupporting

confidence: 93%

Magnetic properties of the spin-3/2 Blume-Capel model on a hexagonal Ising nanowire

Kocakaplan

Ertaş

2015

J. Exp. Theor. Phys.

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Magnetic properties, such as magnetizations, internal energy, specific heat, entropy, Helmholtz free energy and phase diagrams of the spin-3/2 Blume-Capel model on hexagonal Ising nanowire (HIN) with core-shell structure are studied by utilizing the effective-field theory (EFT) with correlations. Moreover, the hysteresis behaviors of the system are also investigated and the effects of Hamiltonian parameters on hysteresis behaviors are discussed, in detail. Finally, the obtained results are compared with some experimental and theoretical results and a qualitatively good agreement is found.

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“…However, the spontaneous magnetization can occur when a single-ion anisotropy is introduced no matter how small it is. This is verified by us [19,20].…”

Section: Model and Methodssupporting

confidence: 80%

“…The many-body Green's function method (MBGFM) is a powerful means [19,20] to calculate magnetization of the magnetic nanostructures since this method takes into account the spin fluctuation, and is valid in the whole temperature range. The retarded Green's function is defined as follows:…”

Section: Model and Methodsmentioning

confidence: 99%

Study of Magnetism of Two-Dimensional Ferromagnetic Graphene

Xue

Wang

et al. 2012

AMR

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In this paper, the magnetic properties of ferromagnetic graphene nanostructures, especially the dependence of the magnetism on finite temperature, are investigated by use of the many-body Green’s function method of quantum statistical theory. The spontaneous magnetization increases with spin quantum number, and decreases with temperature. Curie temperature increases with exchange parameter J or the strength K2 of single-ion anisotropy and spin quantum number. The Curie temperature TC is directly proportional to the exchange parameter J. The spin-wave energy drops with temperature rising, and becomes zero as temperature reaches Curie temperature. As J(p,q)=0, ω1=ω2, the spin wave energy is degenerate, and the corresponding vector k=(p, q) is called the Dirac point. This study contributes to theoretical analysis for pristine two-dimensional magnetic nanomaterials that may occur in advanced experiments.

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Theoretical investigations of magnetic properties of ferromagnetic single‐layered nanobelts

Cited by 12 publications

References 46 publications

Hysteresis and compensation behaviors of spin-3/2 cylindrical Ising nanotube system

Hysteresis and compensation behaviors of spin-3/2 cylindrical Ising nanotube system

Magnetic properties of the spin-3/2 Blume-Capel model on a hexagonal Ising nanowire

Study of Magnetism of Two-Dimensional Ferromagnetic Graphene

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