Modified Granato-Lucke Theory with Pinning Length Distribution in Solid He-4

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We developed a detailed microscopic method that describes the shear modulus anomaly of solid helium at low temperature. The shear modulus was calculated using the pinning length of dislocations determined in detail for both crossing network nodes and He-3 impurities. The strong suppression of the shear modulus is reproduced well as the temperature or stress increases. The shear modulus at low temperatures depends strongly on how the state was prepared. All the key features in the stress hysteresis can be quantitatively explained in terms of the thermomechanical path-dependent pinning length of dislocation networks.
Publisher
PHYSICAL SOC JAPAN
Issue Date
2015-03
Language
English
Article Type
Article
Citation

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, v.84, no.3, pp.034602

ISSN
0031-9015
DOI
10.7566/JPSJ.84.034602
URI
http://hdl.handle.net/10203/195969
Appears in Collection
PH-Journal Papers(저널논문)
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