182 citations · 578 across the 36 of their papers we have counts for
7 papers · 1 filter
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…
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…
BCC vs. HCP - The Effect of Crystal Symmetry on the High Temperature Mobility of Solid He
Anna Eyal, Emil Polturak
We report results of torsional oscillator (TO) experiments on solid He at temperatures above 1K. We have previously found that single crystals, once disordered, show some mobil…
On The Mobile Behavior of Solid He at High Temperatures
Anna Eyal, Emil Polturak
We report studies of solid helium contained inside a torsional oscillator, at temperatures between 1.07K and 1.87K. We grew single crystals inside the oscillator using commercially…
Evidence for a High-Temperature Disorder-Induced Mobility in Solid He
Anna Eyal, Oshri Pelleg, Lior Embon +1
We have carried out torsional oscillator experiments on solid He at temperatures between 1.3K and 1.9K. We discovered phenomena similar to those observed at temperatures below…
New excitations in bcc He - an inelastic neutron scattering study
O. Pelleg, J. Bossy, E. Farhi +3
We report neutron scattering measurements on bcc solid % He. We studied the phonon branches and the recently discovered ''optic-like'' branch along the main crystalline direc…