Unique magnetic and thermodynamic properties of a zigzag graphene nanoribbon

被引：49

作者：

Wang, Xue-Sheng ^{[1
]}

Zhang, Fan ^{[1
]}

Si, Nan ^{[1
]}

Meng, Jing ^{[1
]}

Zhang, Yan-Li ^{[2
]}

Jiang, Wei ^{[1
]}

机构：

[1] Shenyang Univ Technol, Sch Sci, Shenyang 110870, Liaoning, Peoples R China

[2] Shenyang Univ Technol, Sch Elect Engn, Shenyang 110870, Liaoning, Peoples R China

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2019年 / 527卷

关键词：

Zigzag graphene nanoribbon; Monte Carlo simulation; Magnetization; Specific heat; Blocking temperature; MONTE-CARLO; CARBON NANOTUBES; QUANTUM DOTS; SIZE; SUSCEPTIBILITIES; NANOPARTICLE; NANOWIRE; PLATEAUS; LATTICE; SPIN-1;

D O I：

10.1016/j.physa.2019.121356

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetic and thermodynamic properties of the zigzag graphene nanoribbon described by Ising model have been studied within Monte Carlo simulation. The system exhibited interesting and rich magnetization plateaus behaviors at low temperature, which is sensitive to the exchange coupling and the anisotropy. In certain parameters, the depressed saturation magnetization, spin-flip or spin-flop has been found on the magnetization curves. The peaks on the susceptibility and specific heat curves originate from competition among the magnetic field, the exchange couplings and anisotropies. The spin configurations of the zigzag graphene nanoribbon can be modulated by the anisotropies. Our results can provide an opportunity for the design of a new type random access memory by using zigzag graphene nanoribbon. (C) 2019 Elsevier B.V. All rights reserved.

引用

页数：10

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