Persistent Currents in Helical Structures

Details Persistent Currents in Helical Structures Persistent Currents in Helical Structures

2004-03-28

arxiv.org/abs/cond-mat/0403677v4

Phys. Rev. B 70 195411 (2004)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 figures. Submitted to PRB

Scientific paper

10.1103/PhysRevB.70.195411

Recent discovery of mesoscopic electronic structures, in particular the carbon nanotubes, made necessary an investigation of what effect may helical symmetry of the conductor (metal or semiconductor) have on the persistent current oscillations. We investigate persistent currents in helical structures which are non-decaying in time, not requiring a voltage bias, dissipationless stationary flow of electrons in a normal-metallic or semiconducting cylinder or circular wire of mesoscopic dimension. In the presence of magnetic flux along the toroidal structure, helical symmetry couples circular and longitudinal currents to each other. Our calculations suggest that circular persistent currents in these structures have two components with periods $\Phi_0$ and $\Phi_0/s$ ($s$ is an integer specific to any geometry). However, resultant circular persistent current oscillations have $\Phi_0$ period. \pacs{PACS:}PACS:73.23.-b

Affiliated with

Also associated with

No associations

Rating

Persistent Currents in Helical Structures does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Persistent Currents in Helical Structures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Persistent Currents in Helical Structures will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-381305