Spin-dependent transport in molecular tunnel junctions

J. R. Petta; S. K. Slater; D. C. Ralph

doi:10.1103/PhysRevLett.93.136601

Spin-dependent transport in molecular tunnel junctions

J. R. Petta, S. K. Slater, D. C. Ralph

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247 Scopus citations

Abstract

The fabrication and the measurements of the transport properties of magnetic tunnel junctions containing octanethiol tunnel barriers was discussed. It was found that the spin polarized tunneling could be observed in transport through these molecular devices. The devices exhibited changes in resistance as the angle between the magnetic moments in the two electrodes was varied showing that low energy electrons could traverse the molecular barrier while remaining spin polarized. The results show that the spin polarized transport signals could be degraded by localized states in the molecular barriers.

Original language	English (US)
Article number	136601
Pages (from-to)	136601-1-136601-4
Journal	Physical review letters
Volume	93
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.93.136601
State	Published - Sep 24 2004

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.93.136601

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title = "Spin-dependent transport in molecular tunnel junctions",

abstract = "The fabrication and the measurements of the transport properties of magnetic tunnel junctions containing octanethiol tunnel barriers was discussed. It was found that the spin polarized tunneling could be observed in transport through these molecular devices. The devices exhibited changes in resistance as the angle between the magnetic moments in the two electrodes was varied showing that low energy electrons could traverse the molecular barrier while remaining spin polarized. The results show that the spin polarized transport signals could be degraded by localized states in the molecular barriers.",

author = "Petta, {J. R.} and Slater, {S. K.} and Ralph, {D. C.}",

note = "Funding Information: We thank R. A. Buhrman for discussions. This work was supported by DARPA (N00173-03-1-G011), the ARO (DAAD19-01-1-0541), and the NSF (DMR-0244713). A portion of the work was performed at the NSF-funded Cornell Nanoscale Facility/NNIN.",

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doi = "10.1103/PhysRevLett.93.136601",

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AU - Petta, J. R.

AU - Slater, S. K.

AU - Ralph, D. C.

N1 - Funding Information: We thank R. A. Buhrman for discussions. This work was supported by DARPA (N00173-03-1-G011), the ARO (DAAD19-01-1-0541), and the NSF (DMR-0244713). A portion of the work was performed at the NSF-funded Cornell Nanoscale Facility/NNIN.

PY - 2004/9/24

Y1 - 2004/9/24

N2 - The fabrication and the measurements of the transport properties of magnetic tunnel junctions containing octanethiol tunnel barriers was discussed. It was found that the spin polarized tunneling could be observed in transport through these molecular devices. The devices exhibited changes in resistance as the angle between the magnetic moments in the two electrodes was varied showing that low energy electrons could traverse the molecular barrier while remaining spin polarized. The results show that the spin polarized transport signals could be degraded by localized states in the molecular barriers.

AB - The fabrication and the measurements of the transport properties of magnetic tunnel junctions containing octanethiol tunnel barriers was discussed. It was found that the spin polarized tunneling could be observed in transport through these molecular devices. The devices exhibited changes in resistance as the angle between the magnetic moments in the two electrodes was varied showing that low energy electrons could traverse the molecular barrier while remaining spin polarized. The results show that the spin polarized transport signals could be degraded by localized states in the molecular barriers.

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Spin-dependent transport in molecular tunnel junctions

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