منابع مشابه
Supersolid state of matter.
We prove that the necessary condition for a solid to be also a superfluid is to have zero-point vacancies, or interstitial atoms, or both, as an integral part of the ground state. As a consequence, in the absence of symmetry between vacancies and interstitials, superfluidity has a zero probability to occur in commensurate solids which break continuous translation symmetry. We discuss recent 4He...
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We develop a simple Ginsburg-Landau theory to study all the possible phases and phase transitions in He, analyze the condition for the existence of the supersolid (SS) and map out its global phase diagram from a unified framework. If the condition favors the existence of the SS, we use the GL theory to address several experimental facts and also make some predictions that are amenable to experi...
متن کاملQuenched dislocation enhanced supersolid ordering.
I show using Landau theory that quenched dislocations can facilitate the supersolid to normal solid 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 supersolid to normal solid transition temperature T_{c}(L), superfluid density rho_{S}(T,L), and specific heat C(T,L) on temperature ...
متن کاملTitle Columnar antiferromagnetic order and spin supersolid
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متن کاملSupersolid and the non-uniform superfluid
We construct a model of non-uniform superfluid having a spatially modulated order parameter that makes it kinematically an x-ray solid, but one with an associated superfluid flow. In the mean field approximation, such a supersolid is found to be energetically stabilized by self-interaction favouring a density wave. Intrinsic to this state is a non-classical translational inertia which we derive...
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ژورنال
عنوان ژورنال: Nature
سال: 2004
ISSN: 0028-0836,1476-4687
DOI: 10.1038/427204a