Domain overlap in antiferromagnetically coupled [Co/Pt]/NiO/[Co/Pt] multilayers

被引：36

作者：

Baruth, A. ^{[1
]}

Yuan, L. ^{[1
]}

Burton, J. D. ^{[1
]}

Janicka, K. ^{[1
]}

Tsymbal, E. Y. ^{[1
]}

Liou, S. H. ^{[1
]}

Adenwalla, S. ^{[1
]}

机构：

[1] Univ Nebraska, Nebraska Ctr Mat & Nanosci, Dept Phys & Astron, Lincoln, NE 68588 USA

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 20期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2388892

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Antiferromagnetically coupled magnetic thin films with perpendicular anisotropy exhibit domain overlap regions originating from magnetostatic stray fields localized in the vicinity of the domain walls. Using high resolution magnetic force microscopy, the authors investigate these overlap regions in [Co/Pt]/NiO/[Co/Pt] multilayers with various strengths of the interlayer exchange coupling. They develop a simple model that provides a quantitative explanation of the formation of these regions and the relationship between the domain overlap width and the coupling strength. Their results are important for application of magnetic layered structures with perpendicular anisotropy in advanced magnetoresistive devices. (c) 2006 American Institute of Physics.

引用

页数：3

共 15 条

[1] Origin of the interlayer exchange coupling in [Co/Pt]/NiO/[Co/Pt] multilayers studied with XAS, XMCD, and micromagnetic modeling [J].

Baruth, A. ;

Keavney, D. J. ;

Burton, J. D. ;

Janicka, K. ;

Tsymbal, E. Y. ;

Yuan, L. ;

Liou, S. H. ;

Adenwalla, S. .

PHYSICAL REVIEW B, 2006, 74 (05)

[2] Dependences of the activation volumes on Ar sputtering pressure in Co/Pt multilayers prepared by dc magnetron sputtering [J].

Cho, YC ;

Choe, SB ;

Shin, SC .

APPLIED PHYSICS LETTERS, 2002, 80 (03) :452-454

[3] Focused ion beam milled CoPt magnetic force microscopy tips for high resolution domain images [J].

Gao, L ;

Yue, LP ;

Yokota, T ;

Skomski, R ;

Liou, SH ;

Takahoshi, H ;

Saito, H ;

Ishio, S .

IEEE TRANSACTIONS ON MAGNETICS, 2004, 40 (04) :2194-2196

[4] Domain walls in antiferromagnetically coupled multilayer films [J].

Hellwig, O ;

Berger, A ;

Fullerton, EE .

PHYSICAL REVIEW LETTERS, 2003, 91 (19)

[5] Mirror domain structures induced by interlayer magnetic wall coupling [J].

Lew, WS ;

Li, SP ;

Lopez-Diaz, L ;

Hatton, DC ;

Bland, JAC .

PHYSICAL REVIEW LETTERS, 2003, 90 (21) :4

[6] Development of high coercivity magnetic force microscopy tips [J].

Liou, SH ;

Yao, YD .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1998, 190 (1-2) :130-134

[7] Oscillatory interlayer exchange coupling in [Pt/Co]n/NiO/[Co/Pt]n multilayers with perpendicular anisotropy:: Dependence on NiO and Pt layer thicknesses -: art. no. 224423 [J].

Liu, ZY ;

Yue, LP ;

Keavney, DJ ;

Adenwalla, S .

PHYSICAL REVIEW B, 2004, 70 (22) :224423-1

[8] Oscillatory interlayer exchange coupling and its temperature dependence in [Pt/Co]3/NiO/[Co/Pt]3 multilayers with perpendicular anisotropy -: art. no. 037207 [J].

Liu, ZY ;

Adenwalla, S .

PHYSICAL REVIEW LETTERS, 2003, 91 (03)

[9] Current-induced magnetization reversal in nanopillars with perpendicular anisotropy [J].

Mangin, S ;

Ravelosona, D ;

Katine, JA ;

Carey, MJ ;

Terris, BD ;

Fullerton, EE .

NATURE MATERIALS, 2006, 5 (03) :210-215

[10] Magnetic tunnel junction device with perpendicular magnetization films for high-density magnetic random access memory [J].

Nishimura, N ;

Hirai, T ;

Koganei, A ;

Ikeda, T ;

Okano, K ;

Sekiguchi, Y ;

Osada, Y .

JOURNAL OF APPLIED PHYSICS, 2002, 91 (08) :5246-5249

← 1 2 →