Controlled normal and inverse current-induced magnetization switching and magnetoresistance in magnetic nanopillars

被引:62
作者
AlHajDarwish, M [1 ]
Kurt, H
Urazhdin, S
Fert, A
Loloee, R
Pratt, WP
Bass, J
机构
[1] Michigan State Univ, Ctr Fundamental Mat Res, Ctr Sensor Mat, Dept Phys & Astron, E Lansing, MI 48824 USA
[2] Univ Paris 11, F-91404 Orsay, France
[3] CNRS THALES, Unite Mixte Phys, F-91404 Orsay, France
基金
美国国家科学基金会;
关键词
D O I
10.1103/PhysRevLett.93.157203
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
By combining pairs of ferromagnetic metals with the same or different signs of scattering anisotropies in ferromagnetic-nonmagnetic-ferromagnetic metal nanopillars, we independently invert just the magnetoresistance, just the direction of current-induced magnetization switching, or both together, at room temperature (295 K) and at 4.2 K. In all cases studied, the switching direction is correctly predicted from the net scattering anisotropy of the fixed ferromagnet, including both bulk and interfacial contributions.
引用
收藏
页码:157203 / 1
页数:4
相关论文
共 37 条
[1]   Inverted current-driven switching in Fe(Cr)/Cr/Fe(Cr) nanopillars [J].
AlHajDarwish, M ;
Fert, A ;
Pratt, WP ;
Bass, J .
JOURNAL OF APPLIED PHYSICS, 2004, 95 (11) :6771-6773
[2]   Current-driven excitations in magnetic multilayers: A brief review [J].
Bass, J ;
Urazhdin, S ;
Birge, NO ;
Pratt, WP .
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2004, 201 (07) :1379-1385
[3]   Current-perpendicular (CPP) magnetoresistance in magnetic metallic multilayers [J].
Bass, J ;
Pratt, WP .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 200 (1-3) :274-289
[4]   Modification of the Landau-Lifshitz equation in the presence of a spin-polarized current in colossal- and giant-magnetoresistive materials [J].
Bazaliy, YB ;
Jones, BA ;
Zhang, SC .
PHYSICAL REVIEW B, 1998, 57 (06) :R3213-R3216
[5]   New origin for spin current and current-induced spin precession in magnetic multilayers [J].
Berger, L .
JOURNAL OF APPLIED PHYSICS, 2001, 89 (10) :5521-5525
[6]   Emission of spin waves by a magnetic multilayer traversed by a current [J].
Berger, L .
PHYSICAL REVIEW B, 1996, 54 (13) :9353-9358
[7]   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
[8]  
Campbell I. A., 1982, Ferromagnetic materials. A handbook on the properties of magnetically ordered substances. Vol.3, P747, DOI 10.1016/S1567-2719(82)03012-1
[9]   Magnetization reversal by injection and transfer of spin:: experiments and theory [J].
Fert, A ;
Cros, V ;
George, JM ;
Grollier, J ;
Jaffrès, H ;
Hamzic, A ;
Vaurès, A ;
Faini, G ;
Ben Youssef, J ;
Le Gall, H .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2004, 272 :1706-1711
[10]   Field dependence of magnetization reversal by spin transfer -: art. no. 174402 [J].
Grollier, J ;
Cros, V ;
Jaffrès, H ;
Hamzic, A ;
George, JM ;
Faini, G ;
Ben Youssef, J ;
Le Gall, H ;
Fert, A .
PHYSICAL REVIEW B, 2003, 67 (17)