Regensburg 2007 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe
TT: Fachverband Tiefe Temperaturen
TT 28: Transport - Poster Session
TT 28.7: Poster
Donnerstag, 29. März 2007, 14:00–17:45, Poster A
Structural Characterisation and Spin-Dependent Transport of Single Wall Carbon Nanotubes — •Dominik Preusche Preusche1, Silvia Schmiedmaier1, Emiliano Pallecchi1, SungHo Jhang1, Benoit Witkamp2, Herre van der Zant2, and Christoph Strunk1 — 1Institut für Angewandte und Experimentelle Physik, Universität Regensburg — 2TU Delft
We investigate spin-dependent transport in and characterise the structure of individual carbon nanotubes. Low temperature magnetoconductance was found to be also gate-dependent and showed spin-valve effect, Coulomb blockade and spin-1/2 Kondo effect. Furthermore, suspended nanotubes have been investigated with a TEM. In particular, their chiral indices can be identified by means of selected area electron diffraction. The micromagnetic properties of the ferromagnetic PdFe contacts as well as their hysteretic magnetic switching have been studied by means of Lorentz microscopy and SQUID measurements. When performed on the same nanotube, structural characterisation will facilitate the interpretation of the magnetoconductance measurements and allow more direct comparison with theoretical simulations.