Thermal Spin-Wave Scattering in Hot-Electron Magnetotransport Across a Spin Valve

R. Jansen; P.S Anil Kumar; O.M.J. van 't Erve; R. Vlutters; P. de Haan; J.C. Lodder

doi:10.1103/PhysRevLett.85.3277

Thermal Spin-Wave Scattering in Hot-Electron Magnetotransport Across a Spin Valve

R. Jansen, P.S Anil Kumar, O.M.J. van 't Erve, R. Vlutters, P. de Haan, J.C. Lodder

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Abstract

The role of thermal scattering in spin-dependent transport of hot electrons at 0.9 eV is studied using a spin-valve transistor with a soft Ni80Fe20/Au/Co base. Spin-dependent scattering makes the collected electron current depend sensitively on the magnetic state of the base. The magnetocurrent reaches 560% at 100 K, decays with increasing temperature, and a huge effect of 350% still remains at room temperature. The results demonstrate that thermal spin waves produce quasielastic spin-flip scattering of hot electrons, resulting in mixing of the two spin channels.

Original language	English
Pages (from-to)	3277-3280
Number of pages	4
Journal	Physical review letters
Volume	85
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.85.3277
Publication status	Published - 2000

Keywords

SMI-NE: From 2006 in EWI-NE

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title = "Thermal Spin-Wave Scattering in Hot-Electron Magnetotransport Across a Spin Valve",

abstract = "The role of thermal scattering in spin-dependent transport of hot electrons at 0.9 eV is studied using a spin-valve transistor with a soft Ni80Fe20/Au/Co base. Spin-dependent scattering makes the collected electron current depend sensitively on the magnetic state of the base. The magnetocurrent reaches 560% at 100 K, decays with increasing temperature, and a huge effect of 350% still remains at room temperature. The results demonstrate that thermal spin waves produce quasielastic spin-flip scattering of hot electrons, resulting in mixing of the two spin channels.",

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AU - Jansen, R.

AU - Anil Kumar, P.S

AU - van 't Erve, O.M.J.

AU - Vlutters, R.

AU - de Haan, P.

AU - Lodder, J.C.

PY - 2000

Y1 - 2000

N2 - The role of thermal scattering in spin-dependent transport of hot electrons at 0.9 eV is studied using a spin-valve transistor with a soft Ni80Fe20/Au/Co base. Spin-dependent scattering makes the collected electron current depend sensitively on the magnetic state of the base. The magnetocurrent reaches 560% at 100 K, decays with increasing temperature, and a huge effect of 350% still remains at room temperature. The results demonstrate that thermal spin waves produce quasielastic spin-flip scattering of hot electrons, resulting in mixing of the two spin channels.

AB - The role of thermal scattering in spin-dependent transport of hot electrons at 0.9 eV is studied using a spin-valve transistor with a soft Ni80Fe20/Au/Co base. Spin-dependent scattering makes the collected electron current depend sensitively on the magnetic state of the base. The magnetocurrent reaches 560% at 100 K, decays with increasing temperature, and a huge effect of 350% still remains at room temperature. The results demonstrate that thermal spin waves produce quasielastic spin-flip scattering of hot electrons, resulting in mixing of the two spin channels.

KW - SMI-NE: From 2006 in EWI-NE

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DO - 10.1103/PhysRevLett.85.3277

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EP - 3280

JO - Physical review letters

JF - Physical review letters

IS - 15

ER -

Thermal Spin-Wave Scattering in Hot-Electron Magnetotransport Across a Spin Valve

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