Monte Carlo Study of a Nano-hexagonal Structure: Wetting and Layering Transitions

被引：10

作者：

Aouini, S. ^{[1
]}

Ziti, S. ^{[2
]}

Labrim, H. ^{[3
]}

Bahmad, L. ^{[1
]}

机构：

[1] Mohammed V Univ Rabat, Lab Magnetisme & Phys Hautes Energies LMPHE URAC, Fac Sci, BP 1014, Rabat, Morocco

[2] Mohammed V Univ Rabat, Lab Rech Informat, Fac Sci, BP 1014, Rabat, Morocco

[3] Ctr Natl Energie Sci & Tech Nucl CNESTEN, Rabat, Morocco

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2017年 / 30卷 / 02期

关键词：

Hexagonal structure; External magnetic field; Crystal magnetic field; Nanostructure; Monte Carlo simulations; Wetting temperature; MAGNETIC-PROPERTIES; MULTILAYER ADSORPTION; ISING NANOWIRE; GRAPHITE; FIELD; NANOPARTICLES; BEHAVIOR; ETHYLENE; MODEL;

D O I：

10.1007/s10948-016-3712-y

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this work, we study the magnetic properties in a nano-hexagonal structure, based on a ferromagnetic Ising model. This system is formed by four hexagonal layers, with the mixed spin sigma=1/2 in the inner and spin S=1 in the surface of our system. This latter is modeled by specific Hamiltonian containing different parameters which are the inner and external magnetic fields, the crystal magnetic field, and the exchange coupling interactions. In this study, we generated the ground state phase diagrams and then studied the magnetizations and the wetting phenomena at finite temperature. For this purpose, we used the Monte Carlo method. Moreover, we analyzed the wetting phenomena and the layering transitions appearing under the effect of different parameters of our Hamiltonian.

引用

页码：455 / 462

页数：8

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