Tailoring magnetoresistance through rotating Ni particles

Details Tailoring magnetoresistance through rotating Ni particles Tailoring magnetoresistance through rotating Ni particles

2011-05-10

arxiv.org/abs/1105.1878v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

10 pages, 4 figures, 7 tables; corrected typos in references

Scientific paper

10.1103/PhysRevB.84.054418

We present \textit{ab initio} studies for different Ni nanocontacts and show
changes in the conductance of such constrictions due to atomic rearrangements
in the contact. In particular we consider a Ni particle and show that the
magnetoresistance can change from a few to 50% and can even reverse sign as a
function of the contact area formed between the particle and the leads.

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