Phys. Rev. B 72, 224418 (2005) [4 pages]Transport in magnetically ordered Pt nanocontactsReceived 6 October 2005; revised 27 October 2005; published 12 December 2005 Pt nanocontacts, like those formed in mechanically controlled break junctions, are shown to develop spontaneous local magnetic order. Our density functional calculations predict that a robust local magnetic order exists in the atoms presenting low coordination, i.e., those forming the atom-sized neck. We thus find that the electronic transport can be spin polarized, although the net value of the conductance still agrees with available experimental information. Experimental implications of the formation of this new type of nanomagnet are discussed. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.72.224418
DOI:
10.1103/PhysRevB.72.224418
PACS:
75.75.+a, 73.63.Rt, 72.25.Ba
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