Issue |
Europhys. Lett.
Volume 73, Number 4, February 2006
|
|
---|---|---|
Page(s) | 642 - 648 | |
Section | Interdisciplinary physics and related areas of science and technology | |
DOI | https://doi.org/10.1209/epl/i2005-10432-4 | |
Published online | 11 January 2006 |
Nanospintronic properties of carbon-cobalt atomic chains
1
Department of Physics, Bilkent University - Bilkent, Ankara 06800, Turkey
2
Center for NanoTechnology, NASA Ames Research Center Moffett Field, CA 94035-1000, USA
Received:
8
November
2005
Accepted:
21
December
2005
Periodic atom chains of carbon-cobalt compounds,
(CnCo), comprise both conducting and insulating
electronic properties simultaneously depending on the spin type of
electrons, and hence are half-metals. Their band gap and the net
magnetic moment oscillate with the number of carbon atoms in a
unit cell. Finite segments of these chains also show interesting
magnetic and transport properties. When connected to appropriate
metallic electrodes the antiferromagnetic CoCnCo segments
behave like molecular spin-valves, which can be conveniently
manipulated.
PACS: 85.75.-d – Magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields / 75.75.+a – Magnetic properties of nanostructures / 75.47.Jn – Ballistic magnetoresistance
© EDP Sciences, 2006
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