Spin injection in a single metallic nanoparticle: a step towards nanospintronics
A. Bernand-Mantel (UMP CNRS/Thales), P. Seneor (UMP CNRS/Thales), N., Lidgi (UMP CNRS/Thales), M. Munoz (UMP CNRS/Thales), V. Cros (UMP, CNRS/Thales), S. Fusil (UMP CNRS/Thales), K. Bouzehouane (UMP CNRS/Thales),, C. Deranlot (UMP CNRS/Thales), A. Vaures (UMP CNRS/Thales)
TL;DR
This paper demonstrates the fabrication of nanometer-sized magnetic tunnel junctions to study single-electron tunneling and spin transport in a single gold nanoparticle, advancing the field of nanospintronics.
Contribution
It introduces a new nanoindentation technique for creating magnetic tunnel junctions and provides experimental evidence of spin-conserved transport in a single metallic nanoparticle.
Findings
Clear Coulomb blockade effects indicating single-electron tunneling
Magnetoresistance evidence of spin conservation during transport
Successful fabrication of nanometer-sized magnetic tunnel junctions
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.
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