Type

Journal Article

Authors

Justin D. Holmes
Michael A. Morris
Donats Erts
Sergey Nikitenko
Matthew T Shaw
Olga Kazakova
Jaideep S Kulkarni
Donna C Arnold
Brian Daly

Subjects

Chemistry

Topics
nanotechnology surface properties nanotubes x ray diffraction nanoparticles chemistry cobalt ferumoxytol particle size nanowires microscopy electron transmission aluminum oxide instrumentation magnetics

Synthesis and characterization of highly ordered cobalt-magnetite nanocable arrays. (2006)

Abstract Magnetically tunable, high-density arrays of coaxial nanocables within anodic aluminum oxide (AAO) membranes have been synthesized. The nanocables consist of magnetite nanowires surrounded by cobalt nanotube sheaths and cobalt nanowires surrounded by magnetite nanotube sheaths. These materials are a combination of separate hard (Co) and soft (Fe3O4) magnetic materials in a single nanocable structure. The combination of two or more magnetic materials in such a radial structure is seen as a very powerful tool for the future fabrication of magnetoresistive, spin-valve and ultrafast spin-injection devices with nonplanar geometries. The nanocable arrays were prepared using a supercritical-fluid inclusion process, whereby the nanotube was first deposited onto the pore walls of the nanoporous membranes and subsequently filled with core material to form coaxial nanocables. In essence, this paper describes a technique for placing novel magnetic technologies into well-defined building blocks that may ultimately lead to new multifunctional devices, such as spin valves and high-density magnetic storage devices.
Collections Ireland -> University College Cork -> PubMed

Full list of authors on original publication

Justin D. Holmes, Michael A. Morris, Donats Erts, Sergey Nikitenko, Matthew T Shaw, Olga Kazakova, Jaideep S Kulkarni, Donna C Arnold, Brian Daly

Experts in our system

1
Justin D. Holmes
University College Cork
Total Publications: 287
 
2
Michael A. Morris
University College Cork
Total Publications: 164
 
3
Donats Erts
University College Cork
Total Publications: 24
 
4
Matthew T Shaw
University College Cork
Total Publications: 24