文档介绍：Spin-Transport in Carbon
Nanotubes
Master of Science Thesis
Faculty of Science
University of Copenhagen
2003
Jonas Rahlf Hauptmann
Ørsted Laboratory
Niels Bohr Institute for Astronomy,
Physics and Geophysics
Preface
The work presented in this thesis is the conclusion of the experimental work that
I have been engaged in for the last year and a half. This work is partially fulfill-
ing the requirements for a Master of Science degree in physics at Copenhagen
University.
In the experimental work I have developed a new method of contacting
carbon nanotubes. This method has been used to contact carbon nanotubes
with the ic material GaMnAs. This ic material was selected
to look upon the spin-transport abilities of carbon nanotubes.
The experimental work has been conducted in the Nano-Science Center at
the . Ørsted Laboratory, Niels Bohr Institute for Astronomy, Physics and
Geophysics, University of Copenhagen.
My supervisor on this project has been associate professor Poul Erik Lin-
delof. I wish to thank Ane Jensen for the collaboration and help with the
fabrication of the carbon nanotube GaMnAs hybrid devices, the experimental
setup and the measurements. I would also like to thank Janusz Sadowski for
growing the samples. I wish to thank Poul Erik Lindelof and Jesper Nyg˚ard for
many inspiring discussion. I also wish to thank people in the carbon nanotube
journal club group: Thomas Sand Jespersen, Martin Kristoffer Haldrup, Jesper
Nyg˚ard, Kasper Grove Rasmussen, Ane Jensen and Poul Erik Lindelof for many
interesting discussion on the topic of carbon nanotubes.
I also wish to thank Tine Rahbek Krog, Thomas Sand Jespersen and Kristian
Ramskov Føge Jensen for help correcting the written words.
Copenhagen, October, 2003.
Jonas Rahlf Hauptmann.
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Abstract
The spin-transport abilities of single-wall carbon nanotubes are investigated.
Single-wall carbon nanotubes are long cylindrical molecules that can be metallic
or s