Phenomenological theory for coherent magnon generation through impulsive stimulated Raman scattering

被引：52

作者：

Gridnev, V. N. ^{[1
]}

机构：

[1] Russian Acad Sci, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.77.094426

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a phenomenological theory for impulsive generation of coherent magnons in magnetic dielectrics through impulsive stimulated Raman scattering. Consideration is given to a lattice which has an arbitrary number of localized spins in each magnetic unit cell. A general expression for the modulation of optical dielectric permittivity by light-induced spin waves is derived and its symmetry properties with respect to time reversal are analyzed. A simple cubic ferromagnet and a rutile-type structure antiferromagnet are treated as examples of application of the theory. It is shown that the ellipticity of the spin precession, inherent to spin waves in antiferromagnets, leads to an enhancement of the amplitude of light-induced spin waves.

引用

页数：7

共 33 条

[31] Coherent magnetization rotation and phase control by ultrashort optical pulses in CrO2 thin films -: art. no. 177402 [J].

Zhang, Q ;

Nurmikko, AV ;

Anguelouch, A ;

Xiao, G ;

Gupta, A .

PHYSICAL REVIEW LETTERS, 2002, 89 (17)

[32] Magnon squeezing in antiferromagnetic MnF2 and FeF2 [J].

Zhao, Jimin ;

Bragas, A. V. ;

Merlin, R. ;

Lockwood, D. J. .

PHYSICAL REVIEW B, 2006, 73 (18)

[33] Neutron-spin resonance in the optimally electron-doped superconductor Nd1.85Ce0.15CuO4-δ [J].

Zhao, Jun ;

Dai, Pengcheng ;

Li, Shiliang ;

Freeman, Paul G. ;

Onose, Y. ;

Tokura, Y. .

PHYSICAL REVIEW LETTERS, 2007, 99 (01)

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