Nickel clusters embedded in carbon nanotubes as high performance magnets.

Abstract:

:Ensembles of fcc nickel nanowires have been synthesized with defined mean sizes in the interior of single-wall carbon nanotubes. The method allows the intrinsic nature of single-domain magnets to emerge with large coercivity as their size becomes as small as the exchange length of nickel. By means of X-ray magnetic circular dichroism we probe electronic interactions at nickel-carbon interfaces where nickel exhibit no hysteresis and size-dependent spin magnetic moment. A manifestation of the interacting two subsystems on a bulk scale is traced in the nanotube's magnetoresistance as explained within the framework of weak localization.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Shiozawa H,Briones-Leon A,Domanov O,Zechner G,Sato Y,Suenaga K,Saito T,Eisterer M,Weschke E,Lang W,Peterlik H,Pichler T

doi

10.1038/srep15033

subject

Has Abstract

pub_date

2015-10-13 00:00:00

pages

15033

issn

2045-2322

pii

srep15033

journal_volume

5

pub_type

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