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          Institute: MPI für Festkörperforschung     Collection: FKF Publikationen 2006     Display Documents



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ID: 306009.0, MPI für Festkörperforschung / FKF Publikationen 2006
Transport and TEM on dysprosium metallofullerene peapods
Authors:Obergfell, D.; Meyer, J. C.; Haluska, M.; Khlobystov, A. N.; Yang, S.; Fan, L.; Liu, D.; Roth, S.
Language:English
Date of Publication (YYYY-MM-DD):2006
Title of Journal:physica status solidi (b)
Volume:243
Issue / Number:13
Start Page:3430
End Page:3434
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:Single-walled carbon nanotubes (SWNTs) produced by the arc-discharge
method using non-magnetic catalysts were filled with Dy@C-82 endohedral
metallofullerenes. Transport measurements were performed on
(DY@C-82)@SWNT metallofullerene peapod samples in field-effect
transistor configuration at 4.2 K. After the transport investigations
the substrates were partially etched away enabling us to take TEM
images of the very same metallofullerene peapod samples on which
transport had been carried out before. This procedure gives essential
information on whether the sample measured was a single tube or a
bundle and on the degree of tube filling. In the case of the presented
measurements, TEM investigations revealed one sample to be a
metallofullerene peapod bundle and another one to be an individual tube
being not or not completely filled despite of a high overall sample
filling. Both samples behave as semiconductors, where the latter sample
exhibits Coulomb blockade oscillations for low bias voltages. Thus we
present the first combined Coulomb blockade diamond and TEM
measurements on a single nanotube and moreover the first transport data
including the transfer characteristics I-sd(V-g) of a sample which is
confirmed to be a metallofullerene peapod bundle. (c) 2006 WILEY-VCH
Verlag GmbH & Co. KGaA, Weinheim.
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Festkörperforschung
External Affiliations:Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany.
; Univ Nottingham, Sch Chem B28, Nottingham NG7 2RD, England.
; Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China.
Identifiers:ISI:000242187000098 [ID No:1]
ISSN:0370-1972 [ID No:2]
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