A Resonant Photoemission Insight to the Electronic Structure of Gd Nanowires Templated in the Hollow Core of SWCNTs

Author(s)

Paola Ayala, Ryo Kitaura, Christian Kramberger, Hidetsugu Shiozawa, Naoki Imazu, Kenji Kobayashi, Duncan John Mowbray, Patrick Hoffmann, Hinsanori N. Shinohara, Thomas Pichler

Abstract

Single wall carbon nanotubes (SWCNTs) are archetypical 1D systems with peculiar electronic properties which can be modified in a controlled manner by various methods. One of these is filling the hollow core with metallofullerenes. Additionally, subsequent modifications can be induced utilizing the nanotube hollow space as a nano-reactor. Here we show the electronic structure changes of Gd@C82 peapods upon transformation into Gd nanowires encapsulated in SWCNTs. This has been monitored by a combined high resolution photoemission and X-ray absorption study. From a detailed analysis of the Gd 3d, 4d, 4f and C1s responses, as well as the valence band resonant photoemission, we were able to elucidate the changes in the bonding environment and charge transfer in these 1D systems. We observe a clear modification of the low energy electronic properties of the SWCNT transformed partly into dou- ble walled tubular structures with encapsulated Gd nanowires.

Organisation(s)

Electronic Properties of Materials

External organisation(s)

Nagoya University, University of Surrey, University of the Basque Country, Helmholtz-Zentrum Berlin für Materialien und Energie

Journal

Materials Express: An International Journal on Multidisciplinary Materials Research

Volume

1

Pages

30-35

No. of pages

6

ISSN

2158-5857

DOI

https://doi.org/10.1166/mex.2011.1004

Publication date

2011

Peer reviewed

Yes

Austrian Fields of Science 2012

103015 Condensed matter

Portal url

https://ucris.univie.ac.at/portal/en/publications/a-resonant-photoemission-insight-to-the-electronic-structure-of-gd-nanowires-templated-in-the-hollow-core-of-swcnts(72e49135-22fa-4030-86d3-90950185b312).html