Nonlinear Propagation of Spin Waves in Microscopic Magnetic Stripes

被引：53

作者：

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

Jersch, J. ^{[1
]}

Rott, K. ^{[2
]}

Krzysteczko, P. ^{[2
]}

Reiss, G. ^{[2
]}

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

机构：

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

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

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 17期

关键词：

MODES;

D O I：

10.1103/PhysRevLett.102.177207

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied experimentally with high spatial and temporal resolution propagation of intense spin waves in microscopic Permalloy stripes. We show that the nonlinearity of the spin system of metallic magnetic films together with microscopic-scale confinement effects lead to an anomalous nonlinear magnetic dynamics, such as a nonlinear spatial self-modulation of spin waves characterized by the repulsive nonlinearity. This phenomenon appears to be densely connected with the nonlinear damping in the system. We find that both of these effects develop synchronously on the nanosecond temporal scale.

引用

页数：4

共 22 条

[1] Observation of spatiotemporal self-focusing of spin waves in magnetic films [J].

Bauer, M ;

Buttner, O ;

Demokritov, SO ;

Hillebrands, B ;

Grimalsky, V ;

Rapoport, Y ;

Slavin, AN .

PHYSICAL REVIEW LETTERS, 1998, 81 (17) :3769-3772

[2] Driven dynamic mode splitting of the magnetic vortex translational resonance [J].

Buchanan, K. S. ;

Grimsditch, M. ;

Fradin, F. Y. ;

Bader, S. D. ;

Novosad, V. .

PHYSICAL REVIEW LETTERS, 2007, 99 (26)

[3] Strong radiation of spin waves by core reversal of a magnetic vortex and their wave behaviors in magnetic nanowire waveguides [J].

Choi, Sangkook ;

Lee, Ki-Suk ;

Guslienko, Konstantin Yu. ;

Kim, Sang-Koog .

PHYSICAL REVIEW LETTERS, 2007, 98 (08)

[4] Excitation of self-localized spin-wave bullets by spin-polarized current in in-plane magnetized magnetic nanocontacts: A micromagnetic study [J].

Consolo, Giancarlo ;

Azzerboni, Bruno ;

Gerhart, Grant ;

Melkov, Gennady A. ;

Tiberkevich, Vasil ;

Slavin, Andrei N. .

PHYSICAL REVIEW B, 2007, 76 (14)

[5] MAGNETOSTATIC MODES OF A FERROMAGNET SLAB [J].

DAMON, RW ;

ESHBACH, JR .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1961, 19 (3-4) :308-320

[6] Some special features of the transition to chaos in the self-modulation of surface spin waves [J].

Demidov, VE ;

Kovshikov, NG .

JETP LETTERS, 1997, 66 (04) :261-265

[7] Nonlinear transverse stabilization of spin-wave beams in magnetic stripes [J].

Demidov, Vladislav E. ;

Rekers, Philipp ;

Mahrov, Boriss ;

Demokritov, Sergej O. .

APPLIED PHYSICS LETTERS, 2006, 89 (21)

[8] 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)

[9] Mode interference and periodic self-focusing of spin waves in permalloy microstripes [J].

Demidov, Vladislav E. ;

Demokritov, Sergej O. ;

Rott, Karsten ;

Krzysteczko, Patryk ;

Reiss, Guenter .

PHYSICAL REVIEW B, 2008, 77 (06)

[10] Bose-Einstein condensation of quasi-equilibrium magnons at room temperature under pumping [J].

Demokritov, S. O. ;

Demidov, V. E. ;

Dzyapko, O. ;

Melkov, G. A. ;

Serga, A. A. ;

Hillebrands, B. ;

Slavin, A. N. .

NATURE, 2006, 443 (7110) :430-433

← 1 2 3 →