Long- and short-range magnetic order in granular arrays with dipolar coupling

被引：2

作者：

Pogorelov, YG ^{[1
]}

机构：

[1] Univ Porto, IFIMUP, CFP, P-4169007 Oporto, Portugal

来源：

EUROPEAN MAGNETIC MATERIALS AND APPLICATIONS | 2001年 / 373-3卷

关键词：

fine-particles; monolayers; dipolar; susceptibility; correlation;

D O I：

10.4028/www.scientific.net/MSF.373-376.117

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A classical model is considered for a layered system of granules coupled with magnetodipolar forces. The ground state and low temperature excitation spectrum are calculated, permitting to obtain the static magnetization and different magnetic correlations between nearest neighbor granules in function of magnetic field and temperature.

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收藏

页码：117 / 120

页数：4

相关论文

共 10 条

[1]

BELOBROV PI, 1983, ZH EKSP TEOR FIZ, V57, P636

[2] GROUND-STATE OF AN INFINITE TWO-DIMENSIONAL SYSTEM OF DIPOLES ON A LATTICE WITH ARBITRARY RHOMBICITY ANGLE [J].

BRANKOV, JG ;

DANCHEV, DM .

PHYSICA A, 1987, 144 (01) :128-139

[3] Thickness dependent binary behavior of elongated single-domain cobalt nanostructures [J].

Evoy, S ;

Carr, DW ;

Sekaric, L ;

Suzuki, Y ;

Parpia, JM ;

Craighead, HG .

JOURNAL OF APPLIED PHYSICS, 2000, 87 (01) :404-409

[4] Magnetostatic interdot coupling in two-dimensional magnetic dot arrays [J].

Guslienko, KY .

APPLIED PHYSICS LETTERS, 1999, 75 (03) :394-396

[5] CORRECTION [J].

LUTTINGER, JM .

PHYSICAL REVIEW, 1947, 72 (03) :257-257

[6] Anisotropic magnetic coupling of permalloy micron dots forming a square lattice [J].

Mathieu, C ;

Hartmann, C ;

Bauer, M ;

Buettner, O ;

Riedling, S ;

Roos, B ;

Demokritov, SO ;

Hillebrands, B ;

Bartenlian, B ;

Chappert, C ;

Decanini, D ;

Rousseaux, F ;

Cambril, E ;

Muller, A ;

Hoffmann, B ;

Hartmann, U .

APPLIED PHYSICS LETTERS, 1997, 70 (21) :2912-2914

[7] ORDERING DUE TO DISORDER IN DIPOLAR MAGNETS ON 2-DIMENSIONAL LATTICES [J].

PRAKASH, S ;

HENLEY, CL .

PHYSICAL REVIEW B, 1990, 42 (10) :6574-6589

[8]

SOUSA JB, 2000, STRUCTURE DYNAMICS H

[9] Study of the onset of a long-range ferromagnetic order in an ensemble of small particles with giant magnetic moments [J].

Takzei, GA ;

Mirebeau, I ;

Gun'ko, LP ;

Sych, II ;

Surzhenko, OB ;

Cherepov, SV ;

Troschenkov, YN .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 202 (2-3) :376-384

[10] PLANAR CLASSICAL DIPOLAR SYSTEM ON A HONEYCOMB LATTICE [J].

ZIMMERMAN, GO ;

IBRAHIM, AK ;

WU, FY .

PHYSICAL REVIEW B, 1988, 37 (04) :2059-2065