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arXiv · 1306.4404

Friedel crystals and the outer crust of magnetars

Paulo F. Bedaque·Simin Mahmoodifar·Srimoyee Sen
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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.

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Paulo F. Bedaque, Simin Mahmoodifar, Srimoyee Sen. 2013-06-19. Friedel crystals and the outer crust of magnetars. https://doi.org/10.1103/physrevc.88.055801

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