1994/07/05 by I. V. Krive, Krive, I. V., P. Sandström +5
Engineering · Physics and Astronomy · #Condensed Matter (cond-mat) #FOS: Physical sciences #Molecular Junctions and Nanostructures #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices
paper · pdf · doi:10.48550/arxiv.cond-mat/9407023
openalex publication_date 1994/07/05 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The influence of long-range Coulomb forces on the persistent current of a pinned Wigner crystal-ring is considered. A simple method is proposed for how to take into account Coulomb effects for the macroscopic quantum tunneling of the Wigner crystal. It is shown that unscreened Coulomb interactions increase the stiffness of the Wigner lattice. This leads to additional suppression of the amplitude of Aharonov-Bohm oscillations, but makes the predicted anomalous temperature dependence of the persistent current more pronounced. The impact of dissipation on the persistent current of a Wigner crystal-ring is also studied.