THEORY OF SURFACE AND BULK EXCITATIONS IN FERROMAGNETIC SEMICONDUCTORS

被引：34

作者：

GOPALAN, S

COTTAM, MG

机构：

[1] Department of Physics, University of Western Ontario, London

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.42.10311

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The s-d (or s-f) interaction model is used to study the bulk and surface magnetic excitations of a semi-infinite ferromagnetic semiconductor. A formalism is established to obtain Green functions which provide the dynamic response of the system and from which the surface and bulk excitations and their dispersion relations are calculated. Results are deduced for both narrow-band and wide-band ferromagnetic semiconductors. The applicability to particular materials, such as the spinel-type ferromagnetic semiconductors is discussed. © 1990 The American Physical Society.

引用

页码：10311 / 10318

页数：8

共 30 条

[1] [Anonymous], 1960, SOV PHYS USPEKHI, DOI DOI 10.1070/PU1960V003N03ABEH003275
[2] THEORY OF ELEMENTARY EXCITATIONS IN FERROMAGNETIC SEMICONDUCTORS
BABCENCO, A
COTTAM, MG
[J]. JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1981, 14 (34): : 5347 - 5366
[3] BABCENCO A, 1977, SOLID STATE COMMUN, V21, P651
[4] RESPONSE FUNCTIONS IN THEORY OF RAMAN SCATTERING BY VIBRATIONAL AND POLARITON MODES IN DIELECTRIC CRYSTALS
BARKER, AS
LOUDON, R
[J]. REVIEWS OF MODERN PHYSICS, 1972, 44 (01) : 18 - &
[5] MAGNETOSTATIC THEORY OF COLLECTIVE EXCITATIONS IN FERROMAGNETIC AND ANTIFERROMAGNETIC SUPERLATTICES WITH MAGNETIZATION PERPENDICULAR TO THE SURFACE
CAMLEY, RE
COTTAM, MG
[J]. PHYSICAL REVIEW B, 1987, 35 (01): : 189 - 196
[6] MAGNETIC EXCITATIONS IN LAYERED MEDIA - SPIN-WAVES AND THE LIGHT-SCATTERING SPECTRUM
CAMLEY, RE
RAHMAN, TS
MILLS, DL
[J]. PHYSICAL REVIEW B, 1983, 27 (01): : 261 - 277
[7] COTAM MG, 1989, INTRO SURFACE SUPERL
[8] Cottam M.G., 1986, LIGHT SCATTERING MAG
[9] SPIN CORRELATION-FUNCTIONS OF A SEMI-INFINITE HEISENBERG-FERROMAGNET
COTTAM, MG
[J]. JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1976, 9 (11): : 2121 - 2136
[10] MAGNETOSTATIC MODES OF A FERROMAGNET SLAB
DAMON, RW
ESHBACH, JR
[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1961, 19 (3-4) : 308 - 320

← 1 2 3 →