Friedel crystals and the outer crust of magnetars
High Energy Astrophysical Phenomena
2013-11-13 v1 Nuclear Theory
Abstract
The strong magnetic fields found on the surface of magnetars are known to have profound effects in the physics of atoms in magnetar envelopes. We argue that the Friedel oscillations in the Coulomb force between the ions due to electron shielding can, for certain values of the parameters, be the dominant effect determining the crystal structure in the outer crust of magnetars. We estimate the densities and magnetic fields for which this occurs, compute some of the elastic moduli and lattice phonon dispersion relations in this "Friedel crystal" phase.
Keywords
Cite
@article{arxiv.1306.4404,
title = {Friedel crystals and the outer crust of magnetars},
author = {Paulo F. Bedaque and Simin Mahmoodifar and Srimoyee Sen},
journal= {arXiv preprint arXiv:1306.4404},
year = {2013}
}
Comments
13 pages, 4 figures