Matsumoto K.; Tsuboya H.; Ohmori K.; Abe S.; Suzuki H.; Tayurskii D.
(2009)
In our previous work, anomalous sound attenuation in superfluid phase was observed in liquid 4He filled in 97.0 % porous aerogel using longitudinal ultrasound at the frequency of 10 MHz. To understand the nature of the ...