Magnetotransport properties in magnetic nanotubes studied using Monte Carlo simulations

被引：7

作者：

Salazar-Enriquez, C. D. ^{[1
]}

Restrepo-Parra, E. ^{[1
]}

Restrepo, J. ^{[2
]}

机构：

[1] Univ Nacl Colombia, PCM Computat Applicat, Manizales, Colombia

[2] Univ Antioquia, Inst Fis, Grp Magnetismo Simulac G, Medellin, Colombia

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2013年 / 52卷

关键词：

Geometry; Dimension; Magnetocrystalline anisotropy; Resistivity; Nanotube; DOMAIN-WALLS; BEHAVIOR; FILMS; MODEL; IRON;

D O I：

10.1016/j.physe.2013.03.007

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The dependences of the magnetoelectric transport properties of nanotubes on the temperature, diameter and anisotropy were simulated using the Monte Carlo method, the Heisenberg model and the Drude formula. The simulations included the effects of an external magnetic field, magnetocrystalline anisotropy and nearest neighbor interactions. Two types of nanotubes with different unit cells (square and hexagonal) were implemented. The influence of the nanotube geometry was also analyzed. A smaller dependence of the resistivity on the nanotube diameter and magnetocrystalline anisotropy was observed for the square unit cell nanotubes compared to the results obtained for the hexagonal unit cell nanotubes. Furthermore, lower fluctuations in the resistivity were observed in the former. In contrast, an external magnetic field had a greater influence on the resistivity of the square unit cell nanotubes than for the hexagonal unit cell nanotubes. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：86 / 91

页数：6

共 31 条

[1] The Temperature Dependent Anisotropy Influence on the Magnetic Behavior of Thin Films [J].

Birsan, E. ;

Chis, R. .

ACTA PHYSICA POLONICA A, 2011, 120 (06) :1065-1069

[2] Synthesis, electrical and magnetotransport properties of polypyrrole-MWCNT nanocomposite [J].

Chakraborty, G. ;

Gupta, K. ;

Meikap, A. K. ;

Babu, R. ;

Blau, W. J. .

SOLID STATE COMMUNICATIONS, 2012, 152 (01) :13-18

[3] Domain walls confined in magnetic nanotubes with uniaxial anisotropy [J].

Chen, A. P. ;

Gonzalez, J. ;

Guslienko, K. Y. .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2012, 324 (22) :3912-3917

[4] Self-purification in semiconductor nanocrystals [J].

Dalpian, Gustavo M. ;

Chelikowsky, James R. .

PHYSICAL REVIEW LETTERS, 2006, 96 (22)

[5] Origin of ferromagnetism and nano-scale phase separations in diluted magnetic semiconductors [J].

Dietl, Tomasz .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2006, 35 (02) :293-299

[6] Electronic transport properties of metallic CNTs in an axial magnetic field at nonzero temperatures: A model of an ultra-small digital magnetometer [J].

Dobrokhotov, V ;

Berven, CA .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2006, 31 (02) :111-116

[7] Phase diagrams of magnetic nanotubes [J].

Escrig, J. ;

Landeros, P. ;

Altbir, D. ;

Vogel, E. E. ;

Vargas, P. .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 308 (02) :233-237

[8] Nonuniversal critical behavior of magnetic dipoles on a square lattice [J].

Fernandez, Julio F. ;

Alonso, Juan J. .

PHYSICAL REVIEW B, 2007, 76 (01)

[9] First-principles combinatorial design of transition temperatures in multicomponent systems: The case of Mn in GaAs [J].

Franceschetti, A. ;

Dudiy, S. V. ;

Barabash, S. V. ;

Zunger, A. ;

Xu, J. ;

van Schilfgaarde, M. .

PHYSICAL REVIEW LETTERS, 2006, 97 (04)

[10] Correlation between GMI effect and domain structure in electrodeposited Co-P tubes [J].

Garcia, JM ;

Asenjo, A ;

Sinnecker, JP ;

Vazquez, M .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2000, 215 :352-354

← 1 2 3 4 →