Spin-dependent tunneling in granular magnetic tunnel junctions

F. Petroff; L. F. Schelp; S. F. Lee; F. Fettar; P. Holody; A. Vaures; J. L. Maurice; A. Fert

doi:10.1016/S0304-8853(97)00585-4

Spin-dependent tunneling in granular magnetic tunnel junctions

F. Petroff
, L. F. Schelp
, S. F. Lee
, F. Fettar
, P. Holody
, A. Vaures
, J. L. Maurice
, A. Fert

Centre national de la recherche scientifique

Research output: Contribution to journal › Article › peer-review

Abstract

The interplay between spin-dependent tunneling and Coulomb blockade in Co/Al₂O₃/Co tunnel junctions in which the Al₂O₃ layer includes a unique layer of magnetic clusters is studied. The tunneling structures are prepared by sputtering with typical cluster sizes of 3.5 nm. The spin-dependent tunneling with typical Coulomb blockade effects induced intermediate electron tunneling into clusters. The tunnel magnetoresistance ratio is approximately the same in the Coulomb blockade regime and in the room temperature regime without Coulomb blockade. The magnetic field dependence of the tunnel resistance reflects the magnetization reversal of the electrodes and cobalt clusters.

Original language	English
Pages (from-to)	33
Number of pages	1
Journal	Journal of Magnetism and Magnetic Materials
Volume	175
Issue number	1-2
DOIs	https://doi.org/10.1016/S0304-8853(97)00585-4
Publication status	Published - 1 Jan 1997

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title = "Spin-dependent tunneling in granular magnetic tunnel junctions",

abstract = "The interplay between spin-dependent tunneling and Coulomb blockade in Co/Al2O3/Co tunnel junctions in which the Al2O3 layer includes a unique layer of magnetic clusters is studied. The tunneling structures are prepared by sputtering with typical cluster sizes of 3.5 nm. The spin-dependent tunneling with typical Coulomb blockade effects induced intermediate electron tunneling into clusters. The tunnel magnetoresistance ratio is approximately the same in the Coulomb blockade regime and in the room temperature regime without Coulomb blockade. The magnetic field dependence of the tunnel resistance reflects the magnetization reversal of the electrodes and cobalt clusters.",

author = "F. Petroff and Schelp, \{L. F.\} and Lee, \{S. F.\} and F. Fettar and P. Holody and A. Vaures and Maurice, \{J. L.\} and A. Fert",

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T1 - Spin-dependent tunneling in granular magnetic tunnel junctions

AU - Petroff, F.

AU - Schelp, L. F.

AU - Lee, S. F.

AU - Fettar, F.

AU - Holody, P.

AU - Vaures, A.

AU - Maurice, J. L.

AU - Fert, A.

PY - 1997/1/1

Y1 - 1997/1/1

N2 - The interplay between spin-dependent tunneling and Coulomb blockade in Co/Al2O3/Co tunnel junctions in which the Al2O3 layer includes a unique layer of magnetic clusters is studied. The tunneling structures are prepared by sputtering with typical cluster sizes of 3.5 nm. The spin-dependent tunneling with typical Coulomb blockade effects induced intermediate electron tunneling into clusters. The tunnel magnetoresistance ratio is approximately the same in the Coulomb blockade regime and in the room temperature regime without Coulomb blockade. The magnetic field dependence of the tunnel resistance reflects the magnetization reversal of the electrodes and cobalt clusters.

AB - The interplay between spin-dependent tunneling and Coulomb blockade in Co/Al2O3/Co tunnel junctions in which the Al2O3 layer includes a unique layer of magnetic clusters is studied. The tunneling structures are prepared by sputtering with typical cluster sizes of 3.5 nm. The spin-dependent tunneling with typical Coulomb blockade effects induced intermediate electron tunneling into clusters. The tunnel magnetoresistance ratio is approximately the same in the Coulomb blockade regime and in the room temperature regime without Coulomb blockade. The magnetic field dependence of the tunnel resistance reflects the magnetization reversal of the electrodes and cobalt clusters.

U2 - 10.1016/S0304-8853(97)00585-4

DO - 10.1016/S0304-8853(97)00585-4

M3 - Article

AN - SCOPUS:0031275467

SN - 0304-8853

VL - 175

SP - 33

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 1-2

ER -

Spin-dependent tunneling in granular magnetic tunnel junctions

Abstract

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