Neutron Reflection from the Surface of Liquid 4He with and without a Layer of 3He (2008)
Charlton, T. R., Dalgliesh, R. M., Ganshin, A., Kirichek, O., Langridge, S., McClintock, P. V. E.
We report and discuss the first neutron reflection measurements from the free surface of normal and superfluid 4He and of liquid 3He-4He mixture. In case of liquid 4He the surface roughness is...
Neutron reflection from the surface of normal and superfluid 4He (2007)
Charlton, T. R., Dalgliesh, R. M., Ganshin, A., Kirichek, O., Langridge, S., McClintock, P. V. E.
The reflection of neutrons from a helium surface has been observed for the first time. The 4He surface is smoother in the superfluid state at 1.54 K than in the case of the normal liquid at 2.3 K. In...