Recommended Citation
Published in Physical Review Letters, Volume 87, Issue 2, June 21, 2001, pages 027001.1-027001.4.
NOTE: At the time of publication, the author Karl Saunders was not yet affiliated with Cal Poly.
The definitive version is available at https://doi.org/10.1103/PhysRevLett.87.027001.
Abstract
Ferromagnetic order in superconductors can induce a spontaneous vortex (SV) state. For external field H = 0, rotational symmetry guarantees a vanishing tilt modulus of the SV solid, leading to drastically different behavior than that of a conventional, external-field-induced vortex solid. We show that quenched disorder and anharmoinc effects lead to elastic moduli that are wave-vector dependent out to arbitrarily long length scales, and non-Hookean elasticity. The latter implies that for weak external fields H, the magnetic induction scales universally like B(H)∼B(0)+cHα, with α≈0.72. For weak disorder, we predict the SV solid is a topologically ordered glass, in the “columnar elastic glass” universality class.
Disciplines
Physics
Copyright
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URL: https://digitalcommons.calpoly.edu/phy_fac/90