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Enhanced Spin Dependent Shot Noise in Magnetic Tunnel Barriers

Mesoscale and Nanoscale Physics 2009-11-13 v1
Authors: S. Garzon , Y. Chen , R. A. Webb
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Abstract

We report the observation of enhanced spin dependent shot noise in magnetic tunnel barriers, suggesting transport through localized states within the barrier. This is supported by the existence of negative magnetoresistance and structure in the differential conductance curves. A simple model of tunneling through two interacting localized states with spin dependent tunneling rates is used to explain our observations.

Keywords

spin-dependent shot noise magnetic tunnel barriers localized states tunneling magnetoresistance

Cite

@article{arxiv.cond-mat/0701458,
  title  = {Enhanced Spin Dependent Shot Noise in Magnetic Tunnel Barriers},
  author = {S. Garzon and Y. Chen and R. A. Webb},
  journal= {arXiv preprint arXiv:cond-mat/0701458},
  year   = {2009}
}

Comments

8 pages, 8 figures, submitted to Physica E (proceedings of the seminar on Quantum Coherence, Noise and Decoherence in Nanostructures)

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