Spin injection in a single metallic nanoparticle: a step towards nanospintronics

Abstract

We have fabricated nanometer sized magnetic tunnel junctions using a new nanoindentation technique in order to study the transport properties of a single metallic nanoparticle. Coulomb blockade effects show clear evidence for single electron tunneling through a single 2.5 nm Au cluster. The observed magnetoresistance is the signature of spin conservation during the transport process through a non magnetic cluster.

3 pages

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• Exchange effects on electron transport through single-electron spin-valve transistors
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• Shot noise and tunnel magnetoresistance in multilevel quantum dots: Effects of cotunneling
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