摘要
The low t emperature part of hysteresis curves of the freezing and melting processes of ^(4)He in vycor glass with the lowest temperature O.4K were measured,as the pressure ranged from 36.45 to 55.18(1O^(5)Pa).Some novel characteristics of these curves were observed in such high temperature and pressure range.They may result from the existence of superfluid ^(4)He.
