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Long-ranged dynamic magnetic interaction through low-dimensional systems
(American Physical Society, 2008)
Magnetic units attached to low-dimensional metallic nanowires are known to interact via the conduction electrons of the wire leading to preferential alignment directions of the respective magnetic moments. In addition to ...
Electronic Contribution to the energetics of helically-wrapped nanotubes
(2006)
Motivated by evidence of helical wrapping of polymeric molecules around nanotubes, we calculate the
electronic contribution to the energetics of linear charge distributions around a nanoscale cylindrical structure.
This ...
Quantum ratchets with few bands below the barrier
(American Physical Society, 2002)
We investigate directed motion in nonadiabatically rocked ratchet systems sustaining few bands below the barrier. Upon restricting the dynamics to the lowest M bands, the total system-plus-bath Hamiltonian is mapped onto ...
The relationship between network morphology and conductivity in nanotube films
(2008)
We have characterized both the direct current conductivity and morphology of a wide range of films made from bundled nanotubes, produced by a selection of commercial suppliers. The conductivity increases with increasing ...
Contact-induced spin polarization in carbon nanotubes
(2004)
Motivated by the possibility of combining spintronics with molecular structures, we investigate the conditions for the appearance of spin polarization in low-dimensional tubular systems by contacting them to a magnetic ...
Sudden decay of indirect exchange coupling between magnetic atoms on carbon nanotubes
(2008)
Indirect exchange coupling plays a central role in determining the magnetic order in systems composed of adsorbed magnetic moments on a metallic host. For low-dimensional metallic structures, such as nanotubes, this ...
Non-collinear coupling between magnetic adatoms in carbon nanotubes
(2007)
The long-range character of the exchange coupling between localized magnetic moments indirectly mediated
by the conduction electrons of metallic hosts often plays a significant role in determining the magnetic order ...
Indirect exchange coupling between magnetic adatoms in carbon nanotubes
(2005)
The long-range character of the exchange coupling between localized magnetic moments indirectly mediated by the conduction electrons of metallic hosts can play a significant role in determining the magnetic order of ...
Local electronic properties of carbon nanotube heterojunctions
(2000)
Local electronic properties of metallic-semiconducting carbon nanotube heterostructures are investigated by
studying the behavior of the one-electron local density of states ~LDOS! along the tubes. We determine how
these ...
Physical Mechanism for the mechanical reinforcement in nanotube-polymer composite materials
(2005)
The significant increase in the Young?s modulus of nanotube-polymer composites is often correlated with the formation of a crystalline layer of polymers surrounding the nanotubes. Although the improved stress transfer ...