Quenched Dislocation Enhanced Supersolid Ordering

Abstract

I show using Landau theory that quenched dislocations can facilitate the supersolid (SS) to normal solid (NS) transition, making it possible for the transition to occur even if it does not in a dislocation-free crystal. I make detailed predictions for the dependence of the SS to NS transition temperature T_c(L), superfluid density %ρ_S(T, L), and specific heat C(T,L) on temperature T and dislocation spacing L, all of which can be tested against experiments. The results should also be applicable to an enormous variety of other systems, including, e.g., ferromagnets.

5 pages, 2 figures

References in corpus (4)

• Luttinger Liquid in the Core of Screw Dislocation in Helium-4
• Disorder and the Supersolid State of Solid ${}^4$He
• Ring exchanges and the supersolid phase of 4He
• Nonclassical Rotational Inertia in Single Crystal Helium

Cited by in corpus (5)

• Low Temperature Shear Modulus Changes in Solid 4-He and Connection to Supersolidity
• Solid 4He and the Supersolid Phase: from Theoretical Speculation to the Discovery of a New State of Matter? A Review of the Past and Present Status of Research
• Theory of the superglass phase
• Torsional oscillator and synchrotron x-ray experiments on solid 4He in aerogel
• Quantum plasticity and dislocation-induced supersolidity