Magnetic Response in Mesoscopic Hubbard Rings: A Mean Field Study
arXiv:1005.4608 · doi:10.1016/j.ssc.2010.09.041
Abstract
The present work proposes an idea to remove the long standing controversy between the calculated and measured current amplitudes carried by a small conducting ring upon the application of an Aharonov-Bohm (AB) flux . Within a mean field Hartree-Fock (HF) approximation we numerically calculate persistent current, Drude weight, low-field magnetic susceptibility and related issues. Our analysis may be inspiring for studying magnetic response in nano-scale loop geometries.
8 pages, 8 figures
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- Persistent charge and spin currents in a quantum ring using Green's function technique: Interplay between magnetic flux and spin-orbit interactions
- Magnetic Response in a Zigzag Carbon Nanotube
- A renormalization group study of persistent current in a quasiperiodic ring
- Magneto-transport in a binary alloy ring
- Magneto-transport in a quantum network: Evidence of a mesoscopic switch
- Circulating persistent current and induced magnetic field in a fractal network
- Conformation dependent magnetotransport in a single handed helical geometry
- Effective momentum-momentum coupling in a correlated electronic system