Physics – Condensed Matter – Superconductivity
Scientific paper
2005-06-28
Physics
Condensed Matter
Superconductivity
Scientific paper
We show that a stable spontaneous current appears in a system of a spin density wave order with merons, vortices in the spin configuration with winding number +1. A meron in the spin density wave order modifies the boundary condition for eigenfunctions around it to a sign-change one. As a consequence, two types of stable current states, one with a clockwise circulation and the other with a counterclockwise one, arise. When a magnetic field is present, one produces a diamagnetic current is chosen. A collection of such currents results in a large diamagnetic current; and if the meron density is sufficiently large, a perfect diamagnetism is realized. The stability of this diamagnetic current is attributed to the topological nature of the merons, and as long as the distribution of the merons remains the same the current will persist even in a macroscopic system.
No associations
LandOfFree
A macroscopic persistent current generation by merons in a spin density wave ordered state 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 A macroscopic persistent current generation by merons in a spin density wave ordered state, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A macroscopic persistent current generation by merons in a spin density wave ordered state will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-84380