Stress- and temperature-dependent hysteresis of the shear modulus of solid helium

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The shear modulus of solid He-4 below 200 mK exhibits an unusual increase, the characteristics of which show remarkable similarities to those of the period reduction in torsional oscillator experiments. We systematically studied the drive strain and temperature dependence of the shear modulus at low temperatures. The hysteretic behavior depends strongly on the drive and cooling history, which can be associated with the thermally assisted Granato-Lucke dislocation theory. The phase diagram of the shear modulus is constructed on the basis of the emerging hysteretic behavior. DOI: 10.1103/PhysRevB.87.094512
Publisher
AMER PHYSICAL SOC
Issue Date
2013-03
Language
English
Article Type
Article
Keywords

SUPERSOLIDITY; HE-4

Citation

PHYSICAL REVIEW B, v.87, no.9, pp.094512

ISSN
1098-0121
DOI
10.1103/PhysRevB.87.094512
URI
http://hdl.handle.net/10203/174848
Appears in Collection
PH-Journal Papers(저널논문)
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