The effect of 3He impurities on the nonclassical response to oscillation of solid 4He

Abstract

We have investigated the influence of impurities on the possible supersolid transition by systematically enriching isotopically-pure 4He (< 1 ppb of 3He) with 3He. The onset of nonclassical rotational inertia is broadened and shifts monotonically to higher temperature with increasing 3He concentration, suggesting that the phenomenon is correlated to the condensation of 3He atoms onto the dislocation network in solid 4He.

4 pages

References in corpus (9)

• Low Temperature Shear Modulus Changes in Solid 4-He and Connection to Supersolidity
• Luttinger Liquid in the Core of Screw Dislocation in Helium-4
• Disorder and the Supersolid State of Solid ${}^4$He
• Oscillation Frequency Dependence of Non-Classical Rotation Inertia of Solid ${}^4$He
• Observation of non-classical rotational inertia in bulk solid 4He
• Supersolid Helium at High Pressure
• Annealing Effect for Supersolid Fraction in ${}^4$He
• Nonclassical Rotational Inertia in Single Crystal Helium
• Possible role of 3He impurities in solid 4He

Cited by in corpus (12)

• Evidence for a Superglass State in Solid 4He
• Thermal History of Solid 4He Under Oscillation
• 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
• Heat capacity peak in solid 4He: Effects of disorder and 3He impurities
• Binding of a 3He impurity to a screw dislocation in solid 4He
• Torsional oscillator and synchrotron x-ray experiments on solid 4He in aerogel
• New Dissipation Relaxation Phenomenon in Oscillating Solid He-4
• NMR study of the dynamics of 3He impurities in the proposed supersolid state of solid 4He
• Zero-point vacancies in quantum solids
• Two-dimensional molecular para-hydrogen and ortho-deuterium at zero temperature
• Finite size Berezinski-Kosterlitz-Thouless transition at grain boundaries in solid ${}^4$He and role of ${}^3$He impurities
• Frequency-dependent Study of Solid Helium-4 Contained in a Rigid Double-torus Torsional Oscillator