Dynamic exchange coupling in magnetic bilayers

被引：349

作者：

Heinrich, B ^{[1
]}

Tserkovnyak, Y

Woltersdorf, G

Brataas, A

Urban, R

Bauer, GEW

机构：

[1] Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada

[2] Harvard Univ, Lyman Lab Phys, Cambridge, MA 02138 USA

[3] Norwegian Univ Sci & Technol, Dept Phys, N-7491 Trondheim, Norway

[4] Delft Univ Technol, Dept Nanosci, NL-2628 CJ Delft, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.90.187601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A long-range dynamic interaction between ferromagnetic films separated by normal-metal spacers is reported, which is communicated by nonequilibrium spin currents. It is measured by ferromagnetic resonance and explained by an adiabatic spin-pump theory. In such a resonance the spin-pump mechanism of spatially separated magnetic moments leads to an appreciable increase in the resonant linewidth when the resonance fields are well apart, and results in a dramatic linewidth narrowing when the resonant fields approach each other.

引用

页数：4

共 34 条

[1] Imaging precessional motion of the magnetization vector [J].

Acremann, Y ;

Back, CH ;

Buess, M ;

Portmann, O ;

Vaterlaus, A ;

Pescia, D ;

Melchior, H .

SCIENCE, 2000, 290 (5491) :492-495

[2] Minimum field strength in precessional magnetization reversal [J].

Back, CH ;

Allenspach, R ;

Weber, W ;

Parkin, SSP ;

Weller, D ;

Garwin, EL ;

Siegmann, HC .

SCIENCE, 1999, 285 (5429) :864-867

[3] GIANT MAGNETORESISTANCE OF (001)FE/(001) CR MAGNETIC SUPERLATTICES [J].

BAIBICH, MN ;

BROTO, JM ;

FERT, A ;

VANDAU, FN ;

PETROFF, F ;

EITENNE, P ;

CREUZET, G ;

FRIEDERICH, A ;

CHAZELAS, J .

PHYSICAL REVIEW LETTERS, 1988, 61 (21) :2472-2475

[4] Universal angular magnetoresistance and spin torque in ferromagnetic/normal metal hybrids [J].

Bauer, GEW ;

Tserkovnyak, Y ;

Huertas-Hernando, D ;

Brataas, A .

PHYSICAL REVIEW B, 2003, 67 (09)

[5] Emission of spin waves by a magnetic multilayer traversed by a current [J].

Berger, L .

PHYSICAL REVIEW B, 1996, 54 (13) :9353-9358

[6] Pinholes in antiferromagnetically coupled multilayers: Effects on hysteresis loops and relation to biquadratic exchange [J].

Bobo, JF ;

Kikuchi, H ;

Redon, O ;

Snoeck, E ;

Piecuch, M ;

White, RL .

PHYSICAL REVIEW B, 1999, 60 (06) :4131-4141

[7] Spin battery operated by ferromagnetic resonance [J].

Brataas, A ;

Tserkovnyak, Y ;

Bauer, GEW ;

Halperin, BI .

PHYSICAL REVIEW B, 2002, 66 (06) :604041-604044

[8] Finite-element theory of transport in ferromagnet-normal metal systems [J].

Brataas, A ;

Nazarov, YV ;

Bauer, GEW .

PHYSICAL REVIEW LETTERS, 2000, 84 (11) :2481-2484

[9] OSCILLATORY COUPLING BETWEEN FERROMAGNETIC LAYERS SEPARATED BY A NONMAGNETIC METAL SPACER [J].

BRUNO, P ;

CHAPPERT, C .

PHYSICAL REVIEW LETTERS, 1991, 67 (12) :1602-1605

[10] The role of interfaces in the magnetoresistance of Au/Fe/Au/Fe/GaAs(001) [J].

Enders, A ;

Monchesky, TL ;

Myrtle, K ;

Urban, R ;

Heinrich, B ;

Kirschner, J ;

Zhang, XG ;

Butler, WH .

JOURNAL OF APPLIED PHYSICS, 2001, 89 (11) :7110-7112

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