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Spin-polarized current induced switching in Co/Cu/Co pillars

Appl. Phys. Lett. 78, 3663 (2001); doi:10.1063/1.1374230

Issue Date: 4 June 2001

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J. Grollier, V. Cros, A. Hamzic, J. M. George, H. Jaffrès, and A. Fert
Unité Mixte de Physique CNRS/Thales, 91404 Domaine de Corbeville, Orsay, France

G. Faini
LPN-CNRS, 196 av. H. Ravera, 92225 Bagneux, France

J. Ben Youssef and H. Legall
Laboratoire de Magnétisme de Bretagne-CNRS, 29285 Brest, France
We present experiments of magnetization reversal by spin injection performed on pillar-shaped Co/Cu/Co trilayers. The pillars (200×600 nm2) are fabricated by electron beam lithography and reactive ion etching. Our data for the magnetization reversal at a threshold current confirm previous results on similar pillars. In addition, we present another type of experiment that also clearly evidences the control of the magnetic configuration by the current intensity. Our interpretation is based on a version of the Slonczewski model in which the polarization of the current is calculated in the Valet–Fert model of the giant magnetoresistance with current applied perpendicular to plane. ©2001 American Institute of Physics.
History: Received 2 January 2001; accepted 3 April 2001
Permalink: http://link.aip.org/link/?APPLAB/78/3663/1
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KEYWORDS and PACS

Keywords
PACS
  • 72.25.Mk
    Electronic transport in condensed matter Spin polarized transport Spin transport through interfaces
  • 75.70.Cn
    Magnetic properties and materials Magnetic properties of thin films, surfaces, and interfaces Interfacial magnetic properties (multilayers, superlattices)
  • 75.60.Jk
    Magnetic properties and materials Domain effects, magnetization curves, and hysteresis Magnetization reversal mechanisms
  • 75.70.Pa
    Magnetic properties and materials Magnetic properties of thin films, surfaces, and interfaces Giant magnetoresistance
  • 85.75.Bb
    Electronic and magnetic devices; microelectronics Magnetoelectronics: devices exploiting spin polarized transport or integrated magnetic fields Magnetic memory using giant magnetoresistance
  • 72.25.Ba
    Electronic transport in condensed matter Spin polarized transport Spin polarized transport in metals
  • 75.50.Cc
    Magnetic properties and materials Studies of specific magnetic materials Other ferromagnetic metals and alloys
  • YEAR: 2001

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PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
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REFERENCES (17)
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