Magnetic properties of a bi-fullerene-like structure, X60-Y60, with RKKY interactions in the Blume–Capel model

In this paper, we study the influence of the physical parameters on the thermal and magnetic properties of a nano-particle of bi-fullerene-like structure X[Formula: see text]-Y[Formula: see text] separated by nonmagnetic spherical surfaces, using the Metropolis Monte Carlo (MC) simulations. The coupling between the two spheres containing the spins [Formula: see text] = 3/2 and the spins S = 7/2 belongs to the core and shell, respectively. This study is based on the RKKY (Ruderman–Kittel–Kasuya–Yoshida) interaction type. To complete this work, we carry out the hysteresis cycles of the studied system for different nonmagnetic surface (NMS) numbers.

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Magnetic Properties of the Cylindrical Ising Nanowire: A Monte Carlo Simulation Study

SPIN ◽

10.1142/s2010324717500114 ◽

2017 ◽

Vol 07 (04) ◽

pp. 1750011 ◽

Cited By ~ 1

Author(s):

A. Jabar ◽

R. Masrour ◽

M. Hamedoun ◽

A. Benyoussef

Keyword(s):

Monte Carlo Simulation ◽

Monte Carlo ◽

Magnetic Properties ◽

Crystal Field ◽

Remanent Magnetization ◽

Hysteresis Loops ◽

Core Shell ◽

Monte Carlo Simulation Study ◽

The Core ◽

Magnetic Nanowire

A cylindrical ferrimagnetic magnetic nanowire system of core and shell layers has been investigated using Monte Carlo simulation. Critical temperature is obtained for different values of exchange couplings at the core–shell interface, at shell–shell and core–core. The total magnetization has been the determinate for different values of crystal field. Hysteresis loop, coercive field and remanent magnetization of a core and shell layers are obtained using the Monte Carlo simulation. A number of characteristic behaviors are found, such as the occurrence of single and triple hysteresis loops for appropriate values of crystal field, temperatures values and exchange interaction values.

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Analysis of the Core Physical Characteristics of China Experimental Fast Reactor With MCNP

Journal of Nuclear Engineering and Radiation Science ◽

10.1115/1.4038999 ◽

2018 ◽

Vol 4 (2) ◽

Author(s):

Xiong Wenbin ◽

Xie Qin ◽

Li Huwei ◽

Yang Sengai ◽

Mao Huan ◽

...

Keyword(s):

Monte Carlo ◽

International Atomic Energy Agency ◽

Fast Reactor ◽

Physical Parameters ◽

Energy Agency ◽

Safety Review ◽

The Core ◽

Calculation Results ◽

Design Values ◽

China Experimental Fast Reactor

The whole core model of China experimental fast reactor (CEFR) is established according to the parameters of China experimental fast reactor, which are given by technical publication from the International Atomic Energy Agency (IAEA-TECDOC-1531), and the physical parameters of CEFR are simulated with the Monte Carlo N-particle code (MCNP4a). The calculation results are compared with the data contained in the safety analysis report of CEFR. The calculation results are consistent with the design values, which successfully demonstrate the acceptable fidelity of the MCNP model. The MCNP model will be further refined and applied for nuclear safety review of the CEFR in the future.

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METROPOLIS MONTE CARLO X-RAY AND NEUTRON DIFFRACTION IN ICE Ih

Le Journal de Physique Colloques ◽

10.1051/jphyscol:1987102 ◽

1987 ◽

Vol 48 (C1) ◽

pp. C1-9-C1-14 ◽

Cited By ~ 2

Author(s):

P. W. DEUTSCH

Keyword(s):

Monte Carlo ◽

Neutron Diffraction ◽

X Ray ◽

Metropolis Monte Carlo

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Magnetic Properties of Fe3O4/CoFe2O4 Composite Nanoparticles with Core/Shell Architecture

Ukrainian Journal of Physics ◽

10.15407/ujpe65.10.904 ◽

2020 ◽

Vol 65 (10) ◽

pp. 904

Author(s):

V. O. Zamorskyi ◽

Ya. M. Lytvynenko ◽

A. M. Pogorily ◽

A. I. Tovstolytkin ◽

S. O. Solopan ◽

...

Keyword(s):

Magnetic Properties ◽

Spinel Ferrite ◽

Composite Nanoparticles ◽

Core Shell ◽

Cofe2o4 Nanoparticles ◽

Core Diameter ◽

The Core ◽

Shell Particles ◽

Interface Parameters ◽

Shell Composite

Magnetic properties of the sets of Fe3O4(core)/CoFe2O4(shell) composite nanoparticles with a core diameter of about 6.3 nm and various shell thicknesses (0, 1.0, and 2.5 nm), as well as the mixtures of Fe3O4 and CoFe2O4 nanoparticles taken in the ratios corresponding to the core/shell material contents in the former case, have been studied. The results of magnetic research showed that the coating of magnetic nanoparticles with a shell gives rise to the appearance of two simultaneous effects: the modification of the core/shell interface parameters and the parameter change in both the nanoparticle’s core and shell themselves. As a result, the core/shell particles acquire new characteristics that are inherent neither to Fe3O4 nor to CoFe2O4. The obtained results open the way to the optimization and adaptation of the parameters of the core/shell spinel-ferrite-based nanoparticles for their application in various technological and biomedical domains.

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STUDY OF THE GRAIN BOUNDARY MIGRATION IN A TRICRISTAL PURE ICE WITH BUBBLES

Anales AFA ◽

10.31527/analesafa.2019.30.3.47 ◽

2019 ◽

Vol 30 (3) ◽

pp. 47-51

Author(s):

P.I. Achával ◽

C. L. Di Prinzio

Keyword(s):

Monte Carlo ◽

Grain Boundary ◽

Numerical Simulations ◽

Triple Junction ◽

Boundary Migration ◽

Optical Microscope ◽

Physical Parameters ◽

Grain Boundary Migration

In this paper the migration of a grain triple junction in apure ice sample with bubbles at -5°C was studied for almost 3hs. This allowed tracking the progress of the Grain Boundary (BG) and its interaction with the bubbles. The evolution of the grain triple junction was recorded from successive photographs obtained witha LEICA® optical microscope. Simultaneously, numerical simulations were carried out using Monte Carlo to obtain some physical parameters characteristic of the BG migration on ice.

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Investigation of the Structure and Magnetic Properties of Bulk Amorphous FeCoYB Alloy

Revista de Chimie ◽

10.37358/rc.17.9.5848 ◽

2017 ◽

Vol 68 (9) ◽

pp. 2162-2165 ◽

Cited By ~ 4

Author(s):

Katarzyna Bloch ◽

Mihail Aurel Titu ◽

Andrei Victor Sandu

Keyword(s):

Magnetic Field ◽

Magnetic Properties ◽

Hyperfine Field ◽

Irreversible Processes ◽

Magnetization Process ◽

Casting Method ◽

The Core ◽

Injection Casting ◽

Core Losses ◽

Microstructural Studies

The paper presents the results of structural and microstructural studies for the bulk Fe65Co10Y5B20 and Fe63Co10Y7B20 alloys. All the rods obtained by the injection casting method were fully amorphous. It was found on the basis of analysis of distribution of hyperfine field induction that the samples of Fe65Co10Y5B20 alloy are characterised with greater atomic packing density. Addition of Y to the bulk amorphous Fe65Co10Y5B20 alloy leads to the decrease of the average induction of hyperfine field value. In a strong magnetic field (i.e. greater than 0.4HC), during the magnetization process of the alloys, where irreversible processes take place, the core losses associated with magnetization and de-magnetization were investigated.

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