DC Field | Value | Language |
---|---|---|
dc.contributor.author | Rittner, Ann Sophie C | ko |
dc.contributor.author | Choi, Won-Suk | ko |
dc.contributor.author | Mueller, Erich J | ko |
dc.contributor.author | Reppy, John D | ko |
dc.date.accessioned | 2013-03-08T17:20:18Z | - |
dc.date.available | 2013-03-08T17:20:18Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2009 | - |
dc.identifier.citation | PHYSICAL REVIEW B, v.80, no.22 | - |
dc.identifier.issn | 1098-0121 | - |
dc.identifier.uri | http://hdl.handle.net/10203/93733 | - |
dc.description.abstract | We apply a low-frequency (mHz) ac pressure gradient to a sample of solid helium in order to search for a superfluidlike response. Our results are consistent with zero supersolid flow. Through a statistical analysis of our data, we set a bound on the rate of mass flow between two chambers, and hence the mass current density j. At the 68% confidence level, we bound v equivalent to j/rho < 9.6x10(-4) nm/s for the mass transport velocity. In terms of a simple model for the supersolid, we find an upper bound of 8.4x10(-6) for the supersolid fraction at 25 mK, at this same confidence level. These findings force the conclusion that the NCRI observed in the torsional oscillator experiments is not evidence for a frequency-independent superfluidlike state. Supersolid behavior is a frequency-dependent phenomenon, clearly evident at frequencies above 100 Hz of the torsional oscillator experiments, but undetectably small at frequencies approaching zero. | - |
dc.language | English | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.subject | SOLID HE-4 | - |
dc.subject | HELIUM | - |
dc.subject | SUPERFLUIDITY | - |
dc.subject | CRYSTALS | - |
dc.subject | SEARCH | - |
dc.subject | STATE | - |
dc.title | Absence of pressure-driven supersolid flow at low frequency | - |
dc.type | Article | - |
dc.identifier.wosid | 000273228500090 | - |
dc.identifier.scopusid | 2-s2.0-77954711652 | - |
dc.type.rims | ART | - |
dc.citation.volume | 80 | - |
dc.citation.issue | 22 | - |
dc.citation.publicationname | PHYSICAL REVIEW B | - |
dc.identifier.doi | 10.1103/PhysRevB.80.224516 | - |
dc.contributor.nonIdAuthor | Rittner, Ann Sophie C | - |
dc.contributor.nonIdAuthor | Mueller, Erich J | - |
dc.contributor.nonIdAuthor | Reppy, John D | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | current density | - |
dc.subject.keywordAuthor | solid helium | - |
dc.subject.keywordAuthor | statistical analysis | - |
dc.subject.keywordPlus | SOLID HE-4 | - |
dc.subject.keywordPlus | HELIUM | - |
dc.subject.keywordPlus | SUPERFLUIDITY | - |
dc.subject.keywordPlus | CRYSTALS | - |
dc.subject.keywordPlus | SEARCH | - |
dc.subject.keywordPlus | STATE | - |
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