OSCILLATORY INTERLAYER EXCHANGE COUPLING OF CO/RU AND PERMALLOY/RU MULTILAYERS INVESTIGATED BY BRILLOUIN LIGHT-SCATTERING

被引：9

作者：

FASSBENDER, J ^{[1
]}

NORTEMANN, FC ^{[1
]}

STAMPS, RL ^{[1
]}

CAMLEY, RE ^{[1
]}

HILLEBRANDS, B ^{[1
]}

GUNTHERODT, G ^{[1
]}

PARKIN, SSP ^{[1
]}

机构：

[1] IBM CORP,DIV RES,ALMADEN RES CTR,SAN JOSE,CA 95120

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1993年 / 121卷 / 1-3期

关键词：

D O I：

10.1016/0304-8853(93)91200-Q

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have determined the absolute value of the interlayer exchange coupling constant A12 of sputtered Co/Ru and permalloy/Ru multilayers using Brillouin light scattering. The spin wave frequencies and therefore A12 are found to oscillate as a function of the Ru layer thickness in both multilayer systems with a period of 11.5 angstrom. The amplitudes of the oscillations in A12 are found to be smaller by a factor of 2 in permalloy/Ru compared to Co/Ru, which scales with the smaller saturation magnetization in permalloy. Contrary to the Co/Ru system we found evidence for a short period oscillation in permalloy/Ru. Detailed calculations show that the spin-wave frequency oscillations result from the canting of layer magnetizations in the antiferromagnetic coupling regimes.

引用

收藏

页码：270 / 274

页数：5

相关论文

共 21 条

[1] EFFECTIVE-MEDIUM THEORY OF LONG-WAVELENGTH SPIN-WAVES IN MAGNETIC SUPERLATTICES [J].

ALMEIDA, NS ;

MILLS, DL .

PHYSICAL REVIEW B, 1988, 38 (10) :6698-6710

[2] ENHANCED MAGNETORESISTANCE IN LAYERED MAGNETIC-STRUCTURES WITH ANTIFERROMAGNETIC INTERLAYER EXCHANGE [J].

BINASCH, G ;

GRUNBERG, P ;

SAURENBACH, F ;

ZINN, W .

PHYSICAL REVIEW B, 1989, 39 (07) :4828-4830

[3] MAGNETIC EXCITATIONS IN LAYERED MEDIA - SPIN-WAVES AND THE LIGHT-SCATTERING SPECTRUM [J].

CAMLEY, RE ;

RAHMAN, TS ;

MILLS, DL .

PHYSICAL REVIEW B, 1983, 27 (01) :261-277

[4] BRILLOUIN LIGHT-SCATTERING EXPERIMENTS ON EXCHANGE-COUPLED ULTRATHIN BILAYERS OF IRON SEPARATED BY EPITAXIAL COPPER(001) [J].

COCHRAN, JF ;

RUDD, J ;

MUIR, WB ;

HEINRICH, B ;

CELINSKI, Z .

PHYSICAL REVIEW B, 1990, 42 (01) :508-521

[5] EVIDENCE FOR OSCILLATIONS IN THE INTERLAYER COUPLING OF FE FILMS ACROSS CR FILMS FROM SPIN-WAVES AND M(H) CURVES [J].

DEMOKRITOV, S ;

WOLF, JA ;

GRUNBERG, P .

EUROPHYSICS LETTERS, 1991, 15 (08) :881-886

[6] OSCILLATORY INTERLAYER EXCHANGE COUPLING OF CO/RU MULTILAYERS INVESTIGATED BY BRILLOUIN LIGHT-SCATTERING [J].

FASSBENDER, J ;

NORTEMANN, F ;

STAMPS, RL ;

CAMLEY, RE ;

HILLEBRANDS, B ;

GUNTHERODT, G ;

PARKIN, SSP .

PHYSICAL REVIEW B, 1992, 46 (09) :5810-5813

[7] SHORT-PERIOD AND LONG PERIOD OSCILLATIONS IN THE EXCHANGE COUPLING OF FE ACROSS EPITAXIALLY GROWN AL-INTERLAYERS AND AU-INTERLAYERS [J].

FUSS, A ;

DEMOKRITOV, S ;

GRUNBERG, P ;

ZINN, W .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1992, 103 (03) :L221-L227

[8] LAYERED MAGNETIC-STRUCTURES - EVIDENCE FOR ANTIFERROMAGNETIC COUPLING OF FE LAYERS ACROSS CR INTERLAYERS [J].

GRUNBERG, P ;

SCHREIBER, R ;

PANG, Y ;

BRODSKY, MB ;

SOWERS, H .

PHYSICAL REVIEW LETTERS, 1986, 57 (19) :2442-2445

[9] LAYERED MAGNETIC-STRUCTURES - ANTIFERROMAGNETIC-TYPE INTERLAYER COUPLING AND MAGNETORESISTANCE DUE TO ANTIPARALLEL ALIGNMENT [J].

GRUNBERG, P ;

DEMOKRITOV, S ;

FUSS, A ;

VOHL, M ;

WOLF, JA .

JOURNAL OF APPLIED PHYSICS, 1991, 69 (08) :4789-4791

[10] FERROMAGNETIC AND ANTIFERROMAGNETIC EXCHANGE COUPLING IN BCC EPITAXIAL ULTRATHIN FE(001)/CU(001)/FE(001) TRILAYERS [J].

HEINRICH, B ;

CELINSKI, Z ;

COCHRAN, JF ;

MUIR, WB ;

RUDD, J ;

ZHONG, QM ;

ARROTT, AS ;

MYRTLE, K ;

KIRSCHNER, J .

PHYSICAL REVIEW LETTERS, 1990, 64 (06) :673-676