Eur. Phys. J. B (2012) 85: 43
https://doi.org/10.1140/epjb/e2011-20751-3

Regular Article

Possible low-temperature nearly frictionless states of locally amorphous solid ⁴He in nanopores

¹ Room SW, 4/F, No. 16, 21st Lane, Guanghui Road, Taipei, Taiwan 116, P.R. China
² Distribution Centre, P.O. Box 39, Xihong-Road Toudiban, Urumqi ( Xinjiang ) 830000, P.R. China

^a e-mail: qitaichu09@gmail.com

Received: 12 September 2011
Received in final form: 8 December 2011
Published online: 23 January 2012

Abstract

It has been recently reported that there might be amorphous solid ⁴He formed in around 4.7 ± 0.15 nm pore [J. Bossy, T. Hansen, H.R. Glyde, Phys. Rev. B 81, 184507 (2010)]. By treating the solid ⁴He in confined nanopores at very low temperature locally as an amorphous matter and using the verified transition-state model together with the specific activation energy and volume, we can observe a sudden change of the shearing stresses (which relate to the transport resistance) at corresponding onset temperature of locally amorphous solid ⁴He considering the role of holes or defects. We found that there might be possible almost very-low flow-resistance transport of locally amorphous solid ⁴He confined in nanopores at temperature  ~0.1 K after intensive calculations.