The magnetic properties of the two-dimensional square lattice mixed-spin anisotropic Heisenberg ferromagnet with a transverse magnetic field

被引：5

作者：

Hu, Ai-Yuan ^{[1
]}

Chen, Yuan ^{[2
]}

Wang, Qin ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200240, Peoples R China

[2] Guangzhou Univ, Dept Phys, Guangzhou 510006, Guangdong, Peoples R China

来源：

PHYSICS LETTERS A | 2011年 / 375卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Quantized spin model; Quantum phase transition; Single-ion anisotropy; Heisenberg ferromagnet; GREENS-FUNCTION THEORY; MAGNETORESISTANCE; REORIENTATION; RESISTIVITY; DEPENDENCE; RESONANCE; FILMS;

D O I：

10.1016/j.physleta.2010.12.062

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The two-dimensional square lattice mixed-spin anisotropic Heisenberg ferromagnet with a transverse magnetic field is studied by means of the double-time Green's function. The analytic expressions of the critical temperature, the high-temperature zero-field susceptibilities, the spin-wave velocity, spin-wave stiffness and spin-wave gap are obtained. The phase diagrams in which the critical temperature, the reorientation temperature and the reorientation magnetic field are shown as a function of single-ion anisotropic parameter are discussed. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.

引用

页码：927 / 933

页数：7

共 35 条

[11] Many-body Green's function theory for the magnetic reorientation of thin ferromagnetic films [J].

Fröbrich, P ;

Jensen, PJ ;

Kuntz, PJ ;

Ecker, A .

EUROPEAN PHYSICAL JOURNAL B, 2000, 18 (04) :579-594

[12] Many-body Green's function theory of Heisenberg films [J].

Froebrich, P. ;

Kuntz, P. J. .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2006, 432 (5-6) :223-304

[13] Spin-wave resonances in La0.7Sr0.3MnO3 films:: Measurement of spin-wave stiffness and anisotropy field [J].

Golosovsky, M. ;

Monod, P. ;

Muduli, P. K. ;

Budhani, R. C. .

PHYSICAL REVIEW B, 2007, 76 (18)

[14] Magnetic structure of films: Dependence on anisotropy and atomic morphology [J].

Jensen, P. J. ;

Bennemann, K. H. .

SURFACE SCIENCE REPORTS, 2006, 61 (03) :129-199

[15] Two-dimensional Heisenberg antiferromagnet in a transverse field [J].

Jensen, PJ ;

Bennemann, KH ;

Morr, DK ;

Dreyssé, H .

PHYSICAL REVIEW B, 2006, 73 (14)

[16] THOUSANDFOLD CHANGE IN RESISTIVITY IN MAGNETORESISTIVE LA-CA-MN-O FILMS [J].

JIN, S ;

TIEFEL, TH ;

MCCORMACK, M ;

FASTNACHT, RA ;

RAMESH, R ;

CHEN, LH .

SCIENCE, 1994, 264 (5157) :413-415

[17] GIANT MAGNETORESISTANCE IN LA1-XSRXMNOZ FILMS NEAR ROOM-TEMPERATURE [J].

JU, HL ;

KWON, C ;

LI, Q ;

GREENE, RL ;

VENKATESAN, T .

APPLIED PHYSICS LETTERS, 1994, 65 (16) :2108-2110

[18] EXCITATION OF SPIN WAVES IN A FERROMAGNET BY A UNIFORM RF FIELD [J].

KITTEL, C .

PHYSICAL REVIEW, 1958, 110 (06) :1295-1297

[19] On the temperature dependence of the magnetic excitations [J].

Köbler, U ;

Hoser, A ;

Schäfer, W .

PHYSICA B-CONDENSED MATTER, 2005, 364 (1-4) :55-70

[20] MAGNETORESISTANCE MEASUREMENTS ON THE MAGNETIC SEMICONDUCTOR ND0.5PB0.5MNO3 [J].

KUSTERS, RM ;

SINGLETON, J ;

KEEN, DA ;

MCGREEVY, R ;

HAYES, W .

PHYSICA B, 1989, 155 (1-3) :362-365

← 1 2 3 4 →