Nonclassical Rotational Inertia in Single Crystal Helium

Abstract

It has been proposed that the observed nonclassical rotational inertia (NCRI) in solid helium results from the superflow of thin liquid films along interconnected grain boundaries within the sample. We have carried out new torsional oscillator measurements on large helium crystals grown under constant temperature and pressure. We observe NCRI in all samples, indicating that the phenomenon cannot be explained by a superfluid film flowing along grain boundaries.

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References in corpus (15)

• Luttinger Liquid in the Core of Screw Dislocation in Helium-4
• Disorder and the Supersolid State of Solid ${}^4$He
• On the Supersolid State of Matter
• Oscillation Frequency Dependence of Non-Classical Rotation Inertia of Solid ${}^4$He
• Superfluidity of Grain Boundaries in Solid Helium-4
• Ring exchanges and the supersolid phase of 4He
• The fate of vacancy-induced supersolidity in 4He
• Observation of non-classical rotational inertia in bulk solid 4He
• Supersolid Helium at High Pressure
• Two New Vortex Liquids
• Annealing Effect for Supersolid Fraction in ${}^4$He
• Superfluid Interfaces in Quantum Solids
• Bose Einstein Condensation of incommensurate solid 4He
• Dissipation peak as an indicator of sample inhomogeneity in solid ${}^4$He oscillator experiments
• Possible role of 3He impurities in solid 4He

Cited by in corpus (47)

• Low Temperature Shear Modulus Changes in Solid 4-He and Connection to Supersolidity
• Evidence for a Superglass State in Solid 4He
• A non-superfluid origin of the non-classical rotational inertia in a bulk sample of solid 4He
• Intrinsic and dislocation induced elastic behavior of solid helium
• The effect of 3He impurities on the nonclassical response to oscillation of solid 4He
• Probing the Upper Limit of Nonclassical Rotational Inertia
• 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
• Thermal History of Solid 4He Under Oscillation
• Vortex Fluid State below an Onset Temperature T_0 of Solid 4He
• Wetting Properties of Grain Boundaries in Solid Helium 4
• Quenched Dislocation Enhanced Supersolid Ordering
• Heat capacity peak in solid 4He: Effects of disorder and 3He impurities
• Viscoelastic Behavior of Solid ${}^4$He
• Torsional oscillator and synchrotron x-ray experiments on solid 4He in aerogel
• ${}^4$He Crystal Quality and Rotational Response in a Transparent Torsional Oscillator
• Low frequency acoustics in solid ${}^4$He at low temperature
• The glassy response of solid He-4 to torsional oscillations
• Compressibility of solid helium
• Simultaneous Measurements of the Torsional Oscillator Anomaly and Thermal Conductivity in Solid 4He
• A glassy contribution to the heat capacity of hcp ${}^4$He solids
• NMR study of the dynamics of 3He impurities in the proposed supersolid state of solid 4He
• Supersolid behavior in confined geometry
• A glass anomaly in the shear modulus of solid ${}^4$He
• Zero-point vacancies in quantum solids
• Onset temperature of Bose-Einstein condensation in incommensurate solid 4He
• Percolation Enhanced Supersolids in the Extended Bose-Hubbard Model
• Quantum dislocations: the fate of multiple vacancies in two dimensional solid 4He
• Leggett's bound for amorphous solids
• Relaxation of superflow in a network: an application to the dislocation model of supersolidity of helium crystals
• Finite size Berezinski-Kosterlitz-Thouless transition at grain boundaries in solid ${}^4$He and role of ${}^3$He impurities
• Dislocation-induced superfluidity in a model supersolid
• Quantum plasticity and dislocation-induced supersolidity
• Mott Insulator - Superfluid Transitions in a Two Band Model at Finite Temperature and Possible Application to Supersolid 4He
• Non-classical Rotational Inertia in a Two-dimensional Bosonic Solid Containing Grain Boundaries
• Andreev-Lifshitz Supersolid Hydrodynamics Including the Diffusive Mode
• Andreev-Lifshitz Hydrodynamics Applied to an Ordinary Solid under Pressure
• Hydrodynamics of superfluids confined in blocked rings and wedges
• Generation Efficiencies for Propagating Modes in a Supersolid
• Simultaneous investigation of shear modulus and torsional resonance of solid 4He
• Surface instability and isotopic impurities in quantum solids
• Superfluid Field response to Edge dislocation motion
• Superfluid transition in a correlated defect network
• Saga of Superfluid Solids
• Off-diagonal Long-Range Order and Supersolidity in a Quantum Solid with Vacancies
• Quantized vortex state in hcp solid 4He
• Shear Modulus of an Elastic Solid under External Pressure as a function of Temperature: The case of Helium