Physics – Condensed Matter
Scientific paper
1995-08-14
Physics
Condensed Matter
Seven figures available on request
Scientific paper
10.1103/PhysRevB.52.14657
We have considered an open system consisting of a metallic ring coupled to two electron reservoirs. We have recently shown that in the presence of a transport current, circulating currents can flow in such a ring even in the absence of magnetic field. This is related to the current magnification effect in the ring. In our present work we have studied the effect of impurity on the current magnification. We find that the presence of impurity can enhance the current magnification in the loop significantly and thus lead to large circulating currents in certain range of Fermi energies. This is in contrast to the known fact that impurities can only decrease the persistent currents in a closed ring in the presence of magnetic flux.
Deo Singha P.
Jayannavar Arun M.
Pareek T. P.
No associations
LandOfFree
Effect of impurity on current magnification property of mesoscopic open rings 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 Effect of impurity on current magnification property of mesoscopic open rings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effect of impurity on current magnification property of mesoscopic open rings will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-24120