Charge transport in a CoPt3 nanocrystal microwire

  • P. Beecher
  • , G. De Marzi
  • , A. J. Quinn
  • , G. Redmond
  • , E. V. Shevchenko
  • , H. Weller

Research output: Contribution to journalArticlepeer-review

Abstract

The electrical characteristics of single CoPt3 nanocrystal microwires formed by magnetic field-directed growth from colloidal solutions are presented. The wires comprise disordered assemblies of discrete nanocrystals, separated from each other by protective organic ligand shells. Electrical data indicate that the activated charge transport properties of the wires are determined by the nanocrystal charging energy, governed by the size and capacitance of the individual nanocrystals. Focused ion beam-assisted deposition of Pt metal at the wire-electrode junctions is employed to optimize the wire-electrode contacts, whilst maintaining the nanocrystal-dominated transport characteristics of these one-dimensional nanocrystal structures.

Original languageEnglish
Pages (from-to)5706-5708
Number of pages3
JournalApplied Physics Letters
Volume85
Issue number23
DOIs
Publication statusPublished - 6 Dec 2004

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