Propagation of electromagnetic soliton in anisotropic biquadratic ferromagnetic medium

doi:10.1088/1674-1056/22/3/030512

Chin. Phys. B ›› 2013, Vol. 22 ›› Issue (3): 30512-030512.doi: 10.1088/1674-1056/22/3/030512

Propagation of electromagnetic soliton in anisotropic biquadratic ferromagnetic medium

L. Kavitha^{a b c}, M. Saravanan^a, D. Gopi^{c d}

a Department of Physics, Periyar University, Salem-636 011, Tamilnadu, India;
b The Abdus Salam International Centre for Theoretical Physics, Trieste, Italy;
c Center for Nanoscience and Nanotechnology, Periyar University, Salem-636 011, Tamilnadu, India;
d Department of Chemistry, Periyar University, Salem-636 011, Tamilnadu, India

收稿日期:2012-07-28 修回日期:2012-09-26 出版日期:2013-02-01 发布日期:2013-02-01
基金资助:
Project supported by UGC, NBHM, India in the form of major research projects, DAE-BRNS, India in the form of Young Scientist Research Award, ICTP, Italy in the form of Junior Associateship, and CSIR, India in the form of Senior Research Fellowship.

Propagation of electromagnetic soliton in anisotropic biquadratic ferromagnetic medium

L. Kavitha^{a b c}, M. Saravanan^a, D. Gopi^{c d}

a Department of Physics, Periyar University, Salem-636 011, Tamilnadu, India;
b The Abdus Salam International Centre for Theoretical Physics, Trieste, Italy;
c Center for Nanoscience and Nanotechnology, Periyar University, Salem-636 011, Tamilnadu, India;
d Department of Chemistry, Periyar University, Salem-636 011, Tamilnadu, India

Received:2012-07-28 Revised:2012-09-26 Online:2013-02-01 Published:2013-02-01
Contact: L. Kavitha E-mail:louiskavitha@yahoo.co.in
Supported by:
Project supported by UGC, NBHM, India in the form of major research projects, DAE-BRNS, India in the form of Young Scientist Research Award, ICTP, Italy in the form of Junior Associateship, and CSIR, India in the form of Senior Research Fellowship.

摘要/Abstract

摘要： The information storage technology based on anisotropic ferromagnets with sufficiently high magneto-optical effects has received much attention in recent years. The magneto-optical recording combines the merits of magnetic and optical techniques. We investigate the magneto-optical effects on a biquadratic ferromagnet and show that the dynamics of the system is governed by a perturbed nonlinear Schrödinger equation. The evolutions of amplitude and velocity of the soliton are found to be time independent, thereby admitting the lossless propagation of electromagnetic soliton in the medium, which may have potential applications in accordance with the soliton based optical communication systems. We also exploit the role of perturbation, which has a significant impact on the propagation of electromagnetic soliton.

关键词: solitons, classical spin models, Maxwell equations, nonlinear dynamics

Abstract: The information storage technology based on anisotropic ferromagnets with sufficiently high magneto-optical effects has received much attention in recent years. The magneto-optical recording combines the merits of magnetic and optical techniques. We investigate the magneto-optical effects on a biquadratic ferromagnet and show that the dynamics of the system is governed by a perturbed nonlinear Schrödinger equation. The evolutions of amplitude and velocity of the soliton are found to be time independent, thereby admitting the lossless propagation of electromagnetic soliton in the medium, which may have potential applications in accordance with the soliton based optical communication systems. We also exploit the role of perturbation, which has a significant impact on the propagation of electromagnetic soliton.

Key words: solitons, classical spin models, Maxwell equations, nonlinear dynamics

中图分类号: (Solitons)

05.45.Yv

75.10.Hk (Classical spin models) 03.50.De (Classical electromagnetism, Maxwell equations) 05.45.-a (Nonlinear dynamics and chaos)

L. Kavitha, M. Saravanan, D. Gopi. Propagation of electromagnetic soliton in anisotropic biquadratic ferromagnetic medium[J]. Chin. Phys. B, 2013, 22(3): 30512-030512.

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Propagation of electromagnetic soliton in anisotropic biquadratic ferromagnetic medium

Propagation of electromagnetic soliton in anisotropic biquadratic ferromagnetic medium

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