Nonclassical rotational inertia in helium crystals

A. C. Clark; J. T. West; M. H.W. Chan

doi:10.1103/PhysRevLett.99.135302

Nonclassical rotational inertia in helium crystals

A. C. Clark, J. T. West, M. H.W. Chan

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95 Scopus citations

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 observed NCRI in large He4 crystals grown at constant temperature and pressure, demonstrating that the superfluid grain boundary model cannot explain the phenomenon.

Original language	English (US)
Article number	135302
Journal	Physical review letters
Volume	99
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.99.135302
State	Published - Sep 26 2007

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1103/PhysRevLett.99.135302

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title = "Nonclassical rotational inertia in helium crystals",

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 observed NCRI in large He4 crystals grown at constant temperature and pressure, demonstrating that the superfluid grain boundary model cannot explain the phenomenon.",

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Nonclassical rotational inertia in helium crystals

Abstract

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