Effect of elasticity on torsional oscillator experiments probing the possible supersolidity of helium

Effect of elasticity on torsional oscillator experiments probing the possible supersolidity of helium

We consider the effect of elasticity on torsional oscillator experiments to investigate the possible supersolidity of helium. We show that in most, and possibly all torsional oscillators there is a significant and hitherto unconsidered contribution to the torsional period from the helium elasticity....

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Veröffentlicht in:Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2012-07, Vol.86 (2), Article 020502
1. Verfasser: Maris, Humphrey J.
Format: Artikel
Sprache:eng
Schlagworte:
Condensed matter
Elasticity
Helium
Oscillators
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Zusammenfassung:We consider the effect of elasticity on torsional oscillator experiments to investigate the possible supersolidity of helium. We show that in most, and possibly all torsional oscillators there is a significant and hitherto unconsidered contribution to the torsional period from the helium elasticity. This effect needs to be carefully considered before it can be concluded that a supersolid component is indeed present.
ISSN:1098-0121
1550-235X
DOI:10.1103/PhysRevB.86.020502