Magnetic polaritons in Fibonacci quasicrystals

被引：12

作者：

Albuquerque, EL ^{[1
]}

Guimaraes, ES ^{[1
]}

机构：

[1] Univ Fed Rio Grande Norte, Dept Fis Teor & Expt, BR-59072970 Natal, RN, Brazil

来源：

PHYSICA A | 2000年 / 277卷 / 3-4期

关键词：

D O I：

10.1016/S0378-4371(99)00501-4

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A macroscopic theory is employed to investigate the magnetic polariton spectra in pure and generalized Fibonacci magnetic quasicrystals. The polariton spectra are evaluated in the geometry where the wave vector and the applied field are in the same plane (Voigt geometry). They are calculated for both ferromagnetic and antiferromagnetic orders by using a transfer-matrix approach. Numerical results for the ferromagnets EuS and for the antiferromagnet MnF2 are presented to discuss the fractal aspect of the spectra, including the localization of the modes as well as their scaling properties. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：405 / 414

页数：10

共 12 条

[1] Polaritons in rare-earth magnet-nonmagnetic superlattices [J].

Albuquerque, EL ;

daSilva, LR .

PHYSICS LETTERS A, 1996, 218 (3-6) :333-338

[2]

BELISARD J, 1991, COMMUN MATH PHYS, V135, P379

[3]

BELISARD J, 1989, COMMUN MATH PHYS, V125, P527

[4] Spin waves in quasi-periodic magnetic superlattices [J].

Bezerra, CG ;

Albuquerque, EL .

PHYSICA A, 1997, 245 (3-4) :379-392

[5] BRILLOUIN-MANDELSTAM SCATTERING FROM THERMAL AND EXCITED MAGNONS [J].

BOROVIKROMANOV, AS ;

KREINES, NM .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1982, 81 (05) :351-408

[6] MAGNETOSTATIC THEORY OF COLLECTIVE EXCITATIONS IN FERROMAGNETIC AND ANTIFERROMAGNETIC SUPERLATTICES WITH MAGNETIZATION PERPENDICULAR TO THE SURFACE [J].

CAMLEY, RE ;

COTTAM, MG .

PHYSICAL REVIEW B, 1987, 35 (01) :189-196

[7]

Cottam M. G., 1986, LIGHT SCATTERING MAG

[8] QUASIPERIODIC GAAS-ALAS HETEROSTRUCTURES [J].

MERLIN, R ;

BAJEMA, K ;

CLARKE, R ;

JUANG, FY ;

BHATTACHARYA, PK .

PHYSICAL REVIEW LETTERS, 1985, 55 (17) :1768-1770

[9]

MILLS DL, 1984, SURFACE EXCITONS

[10] RENORMALIZATION-GROUP ANALYSIS OF THE DISCRETE QUASIPERIODIC SCHRODINGER-EQUATION [J].

OSTLUND, S ;

PANDIT, R .

PHYSICAL REVIEW B, 1984, 29 (03) :1394-1414

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