Aspects of spin dynamics and magnetic interactions

被引：86

作者：

Antropov, VP ^{[1
]}

Harmon, BN ^{[1
]}

Smirnov, AN ^{[1
]}

机构：

[1] Iowa State Univ Sci & Technol, Ames Lab, Dept Phys & Astron, Ames, IA 50011 USA

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1999年 / 200卷 / 1-3期

关键词：

spin dynamics; magnetic interactions; magnetic alignment;

D O I：

10.1016/S0304-8853(99)00425-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Non-collinear magnetic alignment is somewhat unusual for equilibrium and these systems exhibiting such ground states are frequently 'victims' of competing forces. For non-equilibrium or dynamical systems (e.g. T > 0) non-collinear alignment is universal. We discuss such systems and present some basic formalism for evaluating from first principles the equation of motion and related relevant properties. Considerable discussion is also devoted to obtaining from first principles, parameters for model magnetic Hamiltonians. These models represent a convenient way to gain insight and to approximately evaluate magnetic interactions for very complex systems. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：148 / 166

页数：19

共 44 条

[1] First-principles calculations of the electronic structure and spectra of strongly correlated systems: The LDA+U method [J].

Anisimov, VI ;

Aryasetiawan, F ;

Lichtenstein, AI .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1997, 9 (04) :767-808

[2] Spin dynamics in magnets: Equation of motion and finite temperature effects [J].

Antropov, VP ;

Katsnelson, MI ;

Harmon, BN ;

vanSchilfgaarde, M ;

Kusnezov, D .

PHYSICAL REVIEW B, 1996, 54 (02) :1019-1035

[3] AB-INITIO SPIN DYNAMICS IN MAGNETS [J].

ANTROPOV, VP ;

KATSNELSON, MI ;

VANSCHILFGAARDE, M ;

HARMON, BN .

PHYSICAL REVIEW LETTERS, 1995, 75 (04) :729-732

[4] Exchange interactions in magnets [J].

Antropov, VP ;

Katsnelson, MI ;

Liechtenstein, AI .

PHYSICA B, 1997, 237 :336-340

[5]

ANTROPOV VP, UNPUB

[6] ON THE DYNAMICS OF ITINERANT ELECTRON MAGNETS IN THE PARAMAGNETIC STATE [J].

EDWARDS, DM .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1984, 45 (01) :151-156

[7] Martensitic transformations: first-principles calculations combined with molecular-dynamics simulations [J].

Entel, P ;

Meyer, R ;

Kadau, K ;

Herper, HC ;

Hoffmann, E .

EUROPEAN PHYSICAL JOURNAL B, 1998, 5 (03) :379-388

[8]

Gross E.K.U., 1990, AdV. Quantum Chem, V21, P255, DOI [10.1016/S0065-3276(08)60600-0, DOI 10.1016/S0065-3276(08)60600-0]

[9] LOCAL DENSITY-FUNCTIONAL THEORY OF FREQUENCY-DEPENDENT LINEAR RESPONSE [J].

GROSS, EKU ;

KOHN, W .

PHYSICAL REVIEW LETTERS, 1985, 55 (26) :2850-2852

[10] SELF-CONSISTENT IMPURITY CALCULATIONS IN THE ATOMIC-SPHERES APPROXIMATION [J].

GUNNARSSON, O ;

JEPSEN, O ;

ANDERSEN, OK .

PHYSICAL REVIEW B, 1983, 27 (12) :7144-7168

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