Change search
ReferencesLink to record
Permanent link

Direct link
Orbital and spin magnetic moments of transforming one-dimensional iron inside metallic and semiconducting carbon nanotubes
University of Vienna, Austria.
University of Vienna, Austria.
Linköping University, Department of Physics, Chemistry and Biology, Surface Physics and Chemistry. Linköping University, The Institute of Technology.
Tokyo Metropolitan University, Japan.
Show others and affiliations
2013 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 87, no 19Article in journal (Refereed) Published
Abstract [en]

The orbital and spin magnetic properties of iron inside metallic and semiconducting carbon nanotubes are studied by means of local x-ray magnetic circular dichroism (XMCD) and bulk superconducting quantum interference device (SQUID). The iron-nanotube hybrids are initially ferrocene filled single-walled carbon nanotubes (SWCNT) of different metallicities. We show that the ferrocene's molecular orbitals interact differently with the SWCNT of different metallicities with no significant XMCD response. At elevated temperatures the ferrocene molecules react with each other to form cementite nanoclusters. The XMCD at various magnetic fields reveal that the orbital and/or spin magnetic moments of the encapsulated iron are altered drastically as the transformation to the 1D clusters takes place. The orbital and spin magnetic moments are both found to be larger in filled semiconducting nanotubes than in the metallic sample. This could mean that the magnetic polarization of the encapsulated material depends on the metallicity of the tubes. From a comparison between the iron 3d magnetic moments and the bulk magnetism measured by SQUID, we conclude that the delocalized magnetisms dominate the magnetic properties of these 1D hybrid nanostructures.

Place, publisher, year, edition, pages
American Physical Society , 2013. Vol. 87, no 19
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-94606DOI: 10.1103/PhysRevB.87.195435ISI: 000319252200009OAI: diva2:633595

Funding Agencies|Austrian Science Funds (FWF)|P621333-N20|European Communitys Seventh Framework Programme (FP7)|226716|Marie Curie Intra European Fellowship within the 7th European Community Framework Programme||

Available from: 2013-06-27 Created: 2013-06-27 Last updated: 2013-07-09

Open Access in DiVA

fulltext(2029 kB)446 downloads
File information
File name FULLTEXT01.pdfFile size 2029 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Liu, Xianjie
By organisation
Surface Physics and ChemistryThe Institute of Technology
In the same journal
Physical Review B. Condensed Matter and Materials Physics
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 446 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 69 hits
ReferencesLink to record
Permanent link

Direct link