Study on magnetic properties of a nano-graphene bilayer

被引：134

作者：

Jiang, Wei ^{[1
]}

Yang, Ying-Ying ^{[1
]}

Guo, An-Bang ^{[1
]}

机构：

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

来源：

CARBON | 2015年 / 95卷

基金：

高等学校博士学科点专项科研基金;

关键词：

THERMODYNAMIC PROPERTIES; DILUTED SURFACE; CUBIC NANOWIRE; ISING NANOWIRE; CRYSTAL-FIELD; TRANSVERSE; NANOPARTICLE; TEMPERATURE;

D O I：

10.1016/j.carbon.2015.07.097

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A nano-graphene bilayer is described by a transverse Ising model with single-ion anisotropy. The upper layer consists of spin 3/2 with an antiferromagnetic exchange coupling, whereas the bottom layer composes of spin 5/2 with a ferromagnetic exchange coupling. Based on the effective-field theory with correlations the general formula for the magnetization is given. Magnetic properties of the system have been studied, such as the magnetization, the magnetic susceptibilities and the blocking temperature. The exchange coupling, the single-ion anisotropy, the transverse field and the external magnetic field have important effects on the blocking temperature. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：190 / 198

页数：9

共 40 条

[1] Nanographene Magnetic Properties: A Monte Carlo Study [J].

Bahmad, L. ;

Masrour, R. ;

Benyoussef, A. .

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2012, 25 (06) :2015-2018

[2] NEW EFFECTIVE FIELD-THEORY FOR THE TRANSVERSE ISING-MODEL [J].

BARRETO, FCS ;

FITTIPALDI, IP ;

ZEKS, B .

FERROELECTRICS, 1981, 39 (1-4) :1103-1106

[3] DILUTED MIXED SPIN-1 AND SPIN-1/2 ON HONEYCOMB LATTICE [J].

BENYOUSSEF, A ;

ELKENZ, A ;

KANEYOSHI, T .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1994, 131 (1-2) :173-178

[4] Thermodynamic properties of the graphene in a magnetic field via the two-dimensional Dirac oscillator [J].

Boumali, Abdelmalek .

PHYSICA SCRIPTA, 2015, 90 (04)

[5] Magnetic phase transitions in pure zigzag graphone nanoribbons [J].

Drissi, L. B. ;

Zriouel, S. .

PHYSICS LETTERS A, 2015, 379 (08) :753-760

[6] Induced magnetic ordering by proton irradiation in graphite -: art. no. 227201 [J].

Esquinazi, P ;

Spemann, D ;

Höhne, R ;

Setzer, A ;

Han, KH ;

Butz, T .

PHYSICAL REVIEW LETTERS, 2003, 91 (22)

[7] New type of antiferromagnetic state in stacked nanographite [J].

Harigaya, K .

CHEMICAL PHYSICS LETTERS, 2001, 340 (1-2) :123-128

[8] Surface effects on magnetic and thermodynamic properties in nanoscale multilayer ferrimagnetic films [J].

Jiang, Wei ;

Chen, Jun-nan ;

Ma, Ben ;

Wang, Zan .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2014, 61 :101-106

[9] Hysteresis loop of a cubic nanowire in the presence of the crystal field and the transverse field [J].

Jiang, Wei ;

Li, Xiao-Xi ;

Liu, Li-Mei ;

Chen, Jun-Nan ;

Zhang, Fan .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2014, 353 :90-98

[10] Surface effects on a ferrimagnetic hexagonal nanowire with single-ion anisotropis and transverse field [J].

Jiang, Wei ;

Zhang, Fan ;

Li, Xiao-Xi ;

Guan, Hong-Yu ;

Guo, An-Bang ;

Wang, Zan .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2013, 47 :95-102

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