182 citations · 578 across the 36 of their papers we have counts for
36 papers
Anomalously Small Excitation Gaps as a Precursor of Dislocation Core Superfluidity in Solid Helium-4
Anatoly Kuklov, Emil Polturak, Nikolay Prokof'ev +1
In the vicinity of the insulator-to-superfluid quantum phase transition in its core, a dislocation in a He-4 crystal supports particle-hole excitations with arbitrary small gaps. T…
Thermal and structural properties of topological defects in solid Helium-4: Strain induced martensitic transformation from hcp to fc orthorhombic lattice
Anatoly Kuklov, Emil Polturak, Nikolay Prokof'ev +1
Several experimental studies have reported thermally activated behavior of the mechanical response of solid Helium-4 which does not fit into the model of thermally activated Frenke…
Is the surface fluid during surface melting, a study of the surface shear modulus of solid Gallium
Almog Danzig, Ori Scaly, Emil Polturak
Melting of 3D solids is often preceded by a melting of their surface, a distinct process which begins at a temperature lower than the melting temperature. Until now, surface meltin…
Observation of quantum friction in solid 4He
Almog Danzig, Ori Scaly, Emil Polturak
Classical sliding friction is dominated by the slip-stick mechanism, where contacts between two bodies are alternately formed and sheared as the bodies move past each other. When t…
Characterization of the Surface of Moving solid 4He
Ethan Livne, Anna Eyal, Ori Scaly +1
Crystal grains of solid He can move in relation to each other even when embedded inside the solid. In this work, we characterize a macroscopic motion of solid hcp He compos…
Observation of a Dislocation Related Interfacial Friction Mechanism in Mobile Solid He
Anna Eyal, Ethan Livne, Emil Polturak
We report a study of the temperature and stress dependence of the friction associated with a relative motion of two masses of solid He in contact. The situation where "two mass…