Search

Your search keyword '"Gillingham, D. M."' showing total 10 results
Start Over Author "Gillingham, D. M."
10 results on '"Gillingham, D. M."'

1. Spin dependent quantum transport effects in Cu nanowires

Author

Gillingham, D. M., Muller, C., and Bland, J. A. C.

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

In this work we investigate quantum transport in Cu nanowires created by bringing macroscopic Cu wires into and out of contact under an applied magnetic field in air. Here we show that a 70 % magneto-conductance effect can be seen in a Cu nanowire in a field of 2 mT at room temperature. We propose that this phenomenon is a consequence of spin filtering due to the adsorption of atmospheric oxygen modifying the electronic band structure and introducing spin split conduction channels. This is a remarkable result since bulk Cu is not magnetic and it may provide a new perspective in the quest for spintronic devices., Comment: 7 pages, 4 figures; added references and removed typos

Published
2003
Full Text
View/download PDF

2. Spin dependent transport effects in Cu nanowires.

Author

Gillingham, D. M., Müller, C., and Bland, J. A. C.

Subjects
*COPPER, *NANOWIRES, *NANOSTRUCTURED materials, *MICROELECTRONICS, *SPINTRONICS, *NANOTECHNOLOGY
Abstract

In this work we investigate quantum transport in Cu nanowires created by bringing macroscopic Cu wires into and out of contact under an applied magnetic field in air. Here we show that a 70% magnetoconductance effect can be seen in a Cu nanowire in a field of 2 mT at room temperature. We propose that this phenomenon is a consequence of spin filtering due to the adsorption of atmospheric oxygen modifying the electronic band structure and introducing spin split conduction channels. Since bulk Cu is not magnetic it may provide a new perspective for spintronics. © 2004 American Institute of Physics. [ABSTRACT FROM AUTHOR]

Published
2004
Full Text
View/download PDF

9. e[sup 2]/h quantization of the conduction in Cu nanowires.

Author

Gillingham, D. M., Linington, I., Müller, C., and Bland, J. A. C.

Subjects
*NANOWIRES, *NANOSTRUCTURED materials, *COPPER wire, *WIRE
Abstract

We have investigated the quantum transport behavior of Cu nanowires created by bringing two macroscopic Cu wires into and out of contact at room temperature. We have observed quantum conductance with steps of both e[SUP2]/h and 2e[SUP2]/h. We conclude that the spin degeneracy can be broken in nonmagnetic Cu nanowires. [ABSTRACT FROM AUTHOR]

Published
2003
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results