Energy shift and damping of dipole-exchange spin waves in ultrathin ferromagnetic films

被引：0

作者：

Cottam, MG ^{[1
]}

Costa, RN

机构：

[1] Univ Western Ontario, Dept Phys & Astron, London, ON N6A 3K7, Canada

[2] Univ Fed Ceara, Dept Fis, BR-60455760 Fortaleza, Ceara, Brazil

来源：

NANOSTRUCTURED MATERIALS | 1999年 / 12卷 / 1-4期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/S0965-9773(99)00143-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A finite-temperature perturbation formalism is developed to study the processes of spin-wave interactions in ultrathin ferromagnetic films including the effects of both the long-range magnetic dipole-dipole interactions and the short-range exchange interactions By contrast with previous macroscopic methods for evaluating spin-wave interactions, the dipolar terms are treated here within a Hamiltonian method together with exchange and anisotropy terms to obtain a theory applicable to ultrathin films at temperatures below the Curie temperature. The contributions to the energy shift and the damping (or reciprocal lifetime) of the dipole-exchange spin waves due to three-magnon and four magnon processes are calculated. Numerical examples are presented (C) 1999 Acta Metallurgica Inc.

引用

页码：395 / 398

页数：4

共 50 条

[41] Microwave signal processing using dipole-exchange spin waves [J].

Kobljanskyj, YV ;

Melkov, GA ;

Tiberkevich, VS ;

Vasyuchka, VI ;

Slavin, AN .

JOURNAL OF APPLIED PHYSICS, 2003, 93 (10) :8594-8596

[42] Microscopic theory of dipole-exchange spin waves in magnetic multilayers [J].

Pereira, JM ;

Costa, RN .

EUROPEAN PHYSICAL JOURNAL B, 2004, 40 (02) :137-144

[43] DIPOLE-EXCHANGE THEORY FOR BRILLOUIN LIGHT-SCATTERING FROM HYBRIDIZED SPIN-WAVES IN FERROMAGNETIC THIN-FILMS [J].

ROJDESTVENSKI, IV ;

COTTAM, MG ;

SLAVIN, AN .

PHYSICAL REVIEW B, 1993, 48 (17) :12768-12777

[44] Microwave signal procesing using dipole-exchange spin waves [J].

Melkov, GA ;

Vasyuchka, VI ;

Dzyapko, AD ;

Chumak, AV .

14th International Crimean Conference: Microwave & Telecommunication Technology, Conference Proceedings, 2004, :441-442

[45] Observation of parametric amplification of propagating dipole-exchange spin waves in yttrium iron garnet films [J].

Kalinikos, BA ;

Kovshikov, NG ;

Kostylev, MP ;

Benner, H .

JETP LETTERS, 1996, 64 (03) :171-176

[46] Weakly non-linear dynamics of dipole-exchange spin waves in ferromagnetic plates of finite thickness [J].

Kiselyov, VV ;

Tankeyev, AP ;

Kobelev, AV .

FIZIKA METALLOV I METALLOVEDENIE, 1996, 82 (05) :38-58

[47] Microwave signal processing in ferrite films using dipole-exchange spin waves scattered on inhomogeneities [J].

Melkov, GA ;

Kobljanskyj, YV ;

Vasyuchka, VI ;

Chumak, AV ;

Slavin, AN .

IEEE TRANSACTIONS ON MAGNETICS, 2004, 40 (04) :2814-2816

[48] Dipole-exchange spin waves in magnetic thin films at zero and finite temperature: Theory and simulations [J].

Meloche, E. ;

Mercer, J. I. ;

Whitehead, J. P. ;

Nguyen, T. M. ;

Plumer, M. L. .

PHYSICAL REVIEW B, 2011, 83 (17)

[49] THEORY OF DIPOLE-EXCHANGE SPIN-WAVE SPECTRUM FOR FERROMAGNETIC-FILMS WITH MIXED EXCHANGE BOUNDARY-CONDITIONS [J].

KALINIKOS, BA ;

SLAVIN, AN .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1986, 19 (35) :7013-7033

[50] Observation of parametric amplification of propagating dipole-exchange spin waves in yttrium iron garnet films [J].

Kalinikos, B.A. ;

Kovshikov, N.G. ;

Kostylev, M.P. ;

Benner, H. .

JETP Letters (Translation of Pis'ma v Zhurnal Eksperimental'noi Teoreticheskoi Fiziki), 1996, 64 (03)

← 1 2 3 4 5 →