Excitation of short-wavelength spin waves in magnonic waveguides

被引：101

作者：

Demidov, V. E. ^{[1
,2
]}

Kostylev, M. P. ^{[3
]}

Rott, K. ^{[4
]}

Muenchenberger, J. ^{[4
]}

Reiss, G. ^{[4
]}

Demokritov, S. O. ^{[1
,2
]}

机构：

[1] Univ Munster, Inst Appl Phys, D-48149 Munster, Germany

[2] Univ Munster, Ctr Nonlinear Sci, D-48149 Munster, Germany

[3] Univ Western Australia, Sch Phys, Crawley, WA 6009, Australia

[4] Univ Bielefeld, Dept Phys, D-33501 Bielefeld, Germany

来源：

APPLIED PHYSICS LETTERS | 2011年 / 99卷 / 08期

基金：

澳大利亚研究理事会;

关键词：

LIGHT-SCATTERING SPECTROSCOPY;

D O I：

10.1063/1.3631756

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

By using phase-resolved micro-focus Brillouin light scattering spectroscopy, we demonstrate experimentally a phenomenon of wavelength conversion of spin waves propagating in tapered Permalloy waveguides. We show that this phenomenon enables efficient excitation of spin waves with sub-micrometer wavelengths being much smaller than the width of the microstrip antenna used for the excitation. The proposed excitation mechanism removes restrictions on the spin-wave wavelength imposed by the size of the antenna and enables improvement of performances of integrated magnonic devices. (C) 2011 American Institute of Physics. [doi:10.1063/1.3631756]

引用

页数：3

共 24 条

[1] Excitation of propagating spin waves with global uniform microwave fields [J].

Au, Y. ;

Davison, T. ;

Ahmad, E. ;

Keatley, P. S. ;

Hicken, R. J. ;

Kruglyak, V. V. .

APPLIED PHYSICS LETTERS, 2011, 98 (12)

[2] Spin-wave propagation in a microstructured magnonic crystal [J].

Chumak, A. V. ;

Pirro, P. ;

Serga, A. A. ;

Kostylev, M. P. ;

Stamps, R. L. ;

Schultheiss, H. ;

Vogt, K. ;

Hermsdoerfer, S. J. ;

Laegel, B. ;

Beck, P. A. ;

Hillebrands, B. .

APPLIED PHYSICS LETTERS, 2009, 95 (26)

[3] Nonlinear Propagation of Spin Waves in Microscopic Magnetic Stripes [J].

Demidov, V. E. ;

Jersch, J. ;

Rott, K. ;

Krzysteczko, P. ;

Reiss, G. ;

Demokritov, S. O. .

PHYSICAL REVIEW LETTERS, 2009, 102 (17)

[4] Direct observation and mapping of spin waves emitted by spin-torque nano-oscillators [J].

Demidov, Vladislav E. ;

Urazhdin, Sergei ;

Demokritov, Sergej O. .

NATURE MATERIALS, 2010, 9 (12) :984-988

[5] Excitation of microwaveguide modes by a stripe antenna [J].

Demidov, Vladislav E. ;

Kostylev, Mikhail P. ;

Rott, Karsten ;

Krzysteczko, Patryk ;

Reiss, Guenter ;

Demokritov, Sergej O. .

APPLIED PHYSICS LETTERS, 2009, 95 (11)

[6] Transformation of propagating spin-wave modes in microscopic waveguides with variable width [J].

Demidov, Vladislav E. ;

Jersch, Johann ;

Demokritov, Sergej O. ;

Rott, Karsten ;

Krzysteczko, Patryk ;

Reiss, Guenter .

PHYSICAL REVIEW B, 2009, 79 (05)

[7] Nano-optics with spin waves at microwave frequencies [J].

Demidov, Vladislav E. ;

Demokritov, Sergej O. ;

Rott, Karsten ;

Krzysteczko, Patryk ;

Reiss, Guenter .

APPLIED PHYSICS LETTERS, 2008, 92 (23)

[8] Micro-Brillouin light scattering spectroscopy of magnetic nanostructures [J].

Demokritov, Sergej O. ;

Demidov, Vladislav E. .

IEEE TRANSACTIONS ON MAGNETICS, 2008, 44 (01) :6-12

[9]

Donahue M.J., 1999, OOMMF USERS GUIDE VE

[10] Brillouin light scattering studies of planar metallic magnonic crystals [J].

Gubbiotti, G. ;

Tacchi, S. ;

Madami, M. ;

Carlotti, G. ;

Adeyeye, A. O. ;

Kostylev, M. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2010, 43 (26)

← 1 2 3 →