Domain wall structure in magnetic bilayers with perpendicular anisotropy

被引：21

作者：

Bellec, A. ^{[1
]}

Rohart, S. ^{[1
]}

Labrune, M. ^{[2
]}

Miltat, J. ^{[1
]}

Thiaville, A. ^{[1
]}

机构：

[1] Univ Paris 11, CNRS, UMR 8502, Phys Solides Lab, F-91405 Orsay, France

[2] Univ Paris 13, CNRS, UPR 9001, Lab PMTM, F-93430 Villetaneuse, France

来源：

EPL | 2010年 / 91卷 / 01期

关键词：

SPIN-VALVE TRANSISTOR; FORCE MICROSCOPY; COBALT FILMS; REVERSAL; SAMPLES; LAYERS; AU;

D O I：

10.1209/0295-5075/91/17009

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the magnetic domain wall structure in magnetic bilayers (two ultrathin ferromagnetic layers separated by a non-magnetic spacer) with perpendicular magnetization. Combining magnetic force and ballistic electron emission microscopies, we are able to reveal the details of the magnetic structure of the wall with a high spatial accuracy. In these layers, we show that the classical Bloch wall observed in single layers transforms into superposed Neel walls due to the magnetic coupling between the ferromagnetic layers. Quantitative agreement with micromagnetic calculations is achieved. Copyright (C) EPLA, 2010

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页数：6

相关论文

共 35 条

[1] MAGNETIC DOMAINS IN THIN EPITAXIAL CO/AU(111) FILMS [J].

ALLENSPACH, R ;

STAMPANONI, M ;

BISCHOF, A .

PHYSICAL REVIEW LETTERS, 1990, 65 (26) :3344-3347

[2] Magnetic domain-wall logic [J].

Allwood, DA ;

Xiong, G ;

Faulkner, CC ;

Atkinson, D ;

Petit, D ;

Cowburn, RP .

SCIENCE, 2005, 309 (5741) :1688-1692

[3] EFFECT OF SUBMONOLAYER COVERAGE ON MAGNETIC-ANISOTROPY OF ULTRATHIN COBALT FILMS M/CO/AU(111) WITH M=AU, CU, PD [J].

BEAUVILLAIN, P ;

BOUNOUH, A ;

CHAPPERT, C ;

MEGY, R ;

OULDMAHFOUD, S ;

RENARD, JP ;

VEILLET, P ;

WELLER, D ;

CORNO, J .

JOURNAL OF APPLIED PHYSICS, 1994, 76 (10) :6078-6080

[4] MAGNETIC DOMAIN-WALLS IN ULTRATHIN FCC COBALT FILMS [J].

BERGER, A ;

OEPEN, HP .

PHYSICAL REVIEW B, 1992, 45 (21) :12596-12599

[5] On the Theory of the Exchange Problem and the Appearence of Retentive Ferromagnetic [J].

Bloch, F. .

ZEITSCHRIFT FUR PHYSIK, 1932, 74 (5-6) :295-335

[6] MAGNETIC DOMAIN-STRUCTURE IN ULTRATHIN FILMS [J].

BOCHI, G ;

HUG, HJ ;

PAUL, DI ;

STIEFEL, B ;

MOSER, A ;

PARASHIKOV, I ;

GUNTHERODT, HJ ;

OHANDLEY, RC .

PHYSICAL REVIEW LETTERS, 1995, 75 (09) :1839-1842

[7] Quantitative interpretation of magnetic force microscopy images from soft patterned elements [J].

García, JM ;

Thiaville, A ;

Miltat, J ;

Kirk, KJ ;

Chapman, JN ;

Alouges, F .

APPLIED PHYSICS LETTERS, 2001, 79 (05) :656-658

[8] UNAMBIGUOUS EVIDENCE OF OSCILLATORY MAGNETIC COUPLING BETWEEN CO LAYERS IN ULTRAHIGH-VACUUM GROWN CO/AU(111)/CO TRILAYERS [J].

GROLIER, V ;

RENARD, D ;

BARTENLIAN, B ;

BEAUVILLAIN, P ;

CHAPPERT, C ;

DUPAS, C ;

FERRE, J ;

GALTIER, M ;

KOLB, E ;

MULLOY, M ;

RENARD, JP ;

VEILLET, P .

PHYSICAL REVIEW LETTERS, 1993, 71 (18) :3023-3026

[9] Ballistic hole magnetic microscopy [J].

Haq, E ;

Banerjee, T ;

Siekman, MH ;

Lodder, JC ;

Jansen, R .

APPLIED PHYSICS LETTERS, 2005, 86 (08) :1-3

[10] Ballistic electron emission microscopy on spin valve structures [J].

Heer, R ;

Smoliner, J ;

Bornemeier, J ;

Brückl, H .

APPLIED PHYSICS LETTERS, 2004, 85 (19) :4388-4390

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