Interlayer magnetic coupling in perpendicular anisotropy L10-FePt based pseudo spin valve

被引：4

作者：

Ho, P. ^{[1
,2
]}

Han, G. C. ^{[2
]}

Chow, G. M. ^{[1
]}

Chen, J. S. ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117576, Singapore

[2] ASTAR, Data Storage Inst, Singapore 117608, Singapore

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 25期

关键词：

exchange interactions (electron); iron alloys; magnetic domain walls; magnetisation reversal; Neel temperature; perpendicular magnetic anisotropy; platinum alloys; RKKY interaction; spin valves; DEVICES;

D O I：

10.1063/1.3602320

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The interlayer coupling effects in L1(0)-FePt based pseudo spin valve were investigated through the reversal behavior and exchange bias properties of the soft L1(0)-FePt layer. The magnitude and sign of the exchange bias field were highly dependent on the magnetization state of the hard L1(0)-FePt layer. In the presence of a fully saturated hard L1(0)-FePt layer, the exchange bias effect stemmed from interlayer interactions due to possible pinholes, Ruderman-Kittel-Kasuya-Yosida or Neacuteel coupling. With a partially saturated hard L1(0)-FePt layer, stray fields emanated from the domain walls of the nonuniformly magnetized hard L1(0)-FePt layer also contributed to the overall coupling strength. (C) 2011 American Institute of Physics. [doi:10.1063/1.3602320]

引用

页数：3

共 14 条

[1] Magnetic domain replication in interacting bilayers with out-of-plane anisotropy: Application to Co/Pt multilayers [J].

Baltz, V. ;

Marty, A. ;

Rodmacq, B. ;

Dieny, B. .

PHYSICAL REVIEW B, 2007, 75 (01)

[2] Magnetic hysteresis loop tuning in antiferromagnetically coupled bilayer structures [J].

Berger, A ;

Margulies, DT ;

Do, H .

APPLIED PHYSICS LETTERS, 2004, 85 (09) :1571-1573

[3] Magnetic coupling between high magnetization perpendicular electrodes in an epitaxial FePt/MgO/FePt magnetic tunnel junction [J].

de Person, P. ;

Warin, P. ;

Jamet, M. ;

Beigne, C. ;

Samson, Y. .

PHYSICAL REVIEW B, 2007, 76 (18)

[4] MAGNETOSTATIC INTERACTIONS BETWEEN THIN MAGNETIC FILMS [J].

FULLER, HW ;

SULLIVAN, DL .

JOURNAL OF APPLIED PHYSICS, 1962, 33 (03) :1063-&

[5] Perpendicular anisotropy L10-FePt based pseudo spin valve with Ag spacer layer [J].

Ho, P. ;

Han, G. C. ;

Evans, R. F. L. ;

Chantrell, R. W. ;

Chow, G. M. ;

Chen, J. S. .

APPLIED PHYSICS LETTERS, 2011, 98 (13)

[6] Spin-valve and pseudo-spin-valve device switching for giant magnetoresistive random access memory applications [J].

Katti, RR ;

Zou, D ;

Reed, D ;

Kaakani, H .

IEEE TRANSACTIONS ON MAGNETICS, 2003, 39 (05) :2848-2850

[7] Giant magnetoresistive random-access memories based on current-in-plane devices [J].

Katti, RR .

PROCEEDINGS OF THE IEEE, 2003, 91 (05) :687-702

[8] 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

[9] Magnetization reversal dominated by domain wall pinning in FePt based spin valves [J].

Mihai, A. P. ;

Attane, J. P. ;

Vila, L. ;

Beigne, C. ;

Pillet, J. C. ;

Marty, A. .

APPLIED PHYSICS LETTERS, 2009, 94 (12)

[10] Neel "orange-peel" coupling in magnetic tunneling junction devices [J].

Schrag, BD ;

Anguelouch, A ;

Ingvarsson, S ;

Xiao, G ;

Lu, Y ;

Trouilloud, PL ;

Gupta, A ;

Wanner, RA ;

Gallagher, WJ ;

Rice, PM ;

Parkin, SSP .

APPLIED PHYSICS LETTERS, 2000, 77 (15) :2373-2375

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