Time-domain propagating spin-wave spectroscopy for forward spin waves in a ferromagnetic metal

被引：2

作者：

Sekiguchi, Koji ^{[1
,4
]}

Chiba, Daichi ^{[2
]}

Tachizaki, Takehiro ^{[3
]}

机构：

[1] Keio Univ, Dept Phys, Yokohama, Kanagawa 2238522, Japan

[2] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

[3] Tokai Univ, Dept Opt & Imaging Sci & Technol, Hiratsuka, Kanagawa 2591292, Japan

[4] Yokohama Natl Univ, Fac Engn, Yokohama, Kanagawa 2408501, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2018年 / 57卷 / 09期

基金：

日本学术振兴会;

关键词：

WALLS; DRIVEN; TORQUE; DYNAMICS;

D O I：

10.7567/JJAP.57.0902B4

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We performed time-domain propagating spin-wave spectroscopy for forward spin waves in a ferromagnetic metallic waveguide in the presence of electric current. The forward spin waves exhibit a large propagation delay and a 35% amplitude change with a smaller current injection of 6 x 10(10) A/m(2), showing a 2 times larger modulation than backward volume spin waves. By measuring electric-current effects in 4 distinct experimental configurations, we found that a current-induced Doppler shift coincided with an Oersted field frequency shift under our experimental conditions. By separating the two phenomena, we evaluated each contribution on the propagating forward spin-wave packet. (C) 2018 The Japan Society of Applied Physics

引用

页数：5

共 33 条

[1] Chiral domain walls move faster [J].

Brataas, Arne .

NATURE NANOTECHNOLOGY, 2013, 8 (07) :485-486

[2] Magnon transistor for all-magnon data processing [J].

Chumak, Andrii V. ;

Serga, Alexander A. ;

Hillebrands, Burkard .

NATURE COMMUNICATIONS, 2014, 5

[3] Mode conversion by symmetry breaking of propagating spin waves [J].

Clausen, P. ;

Vogt, K. ;

Schultheiss, H. ;

Schaefer, S. ;

Obry, B. ;

Wolf, G. ;

Pirro, P. ;

Leven, B. ;

Hillebrands, B. .

APPLIED PHYSICS LETTERS, 2011, 99 (16)

[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] Self-focusing of spin waves in Permalloy microstripes [J].

Demidov, Vladislav E. ;

Demokritov, Sergej O. ;

Rott, Karsten ;

Krzysteczko, Patryk ;

Reiss, Guenter .

APPLIED PHYSICS LETTERS, 2007, 91 (25)

[6] 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)

[7]

Emori S, 2013, NAT MATER, V12, P611, DOI [10.1038/NMAT3675, 10.1038/nmat3675]

[8] Nonreciprocal Oersted field contribution to the current-induced frequency shift of magnetostatic surface waves [J].

Haidar, Mohammad ;

Bailleul, Matthieu ;

Kostylev, Mikhail ;

Lao, Yuyang .

PHYSICAL REVIEW B, 2014, 89 (09)

[9] Thickness dependence of degree of spin polarization of electrical current in permalloy thin films [J].

Haidar, Mohammad ;

Bailleul, Matthieu .

PHYSICAL REVIEW B, 2013, 88 (05)

[10] Current-induced torques and interfacial spin-orbit coupling [J].

Haney, Paul M. ;

Lee, Hyun-Woo ;

Lee, Kyung-Jin ;

Manchon, Aurelien ;

Stiles, M. D. .

PHYSICAL REVIEW B, 2013, 88 (21)

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