Eur. Phys. J. B 78, 341-345 (2010)
https://doi.org/10.1140/epjb/e2010-10594-9

Possible high-temperature disorder-induced mobility of solid ⁴He at T ~ 1.8 K

¹ Wu C-S Institute, 4/F, No. 16, Lane 21, Road Guanghui, Taipei, Taiwan, 11646, China
² Distribution Centre, P.O. Box 39, Toudiban, Road Xihong , Urumqi (Xinjiang), 830000, China

Corresponding author: ^a lanyuene@gmail.com

Received: 1 August 2010
Revised: 9 October 2010
Published online: 17 November 2010

Abstract

It has been recently reported that there might be supersolidity of ⁴He around the temperature range: 1.3 K to 1.9 K [A. Eyal, O. Pelleg, L. Embon, E. Polturak, Phys. Rev. Lett. 105, 025301 (2010)]. By treating the solid ⁴He at very low temperature locally as an amorphous matter and using the transition-rate dependent model together with the specific activation energy and volume, we can observe a series of sudden change of the shearing stresses (which relate to the resistance) at corresponding onset temperatures of supersolid ⁴He considering the role of holes or defects. We found that the possible supersolidity of ⁴He might occur at the temperature 1.8 K after intensive calculations,.