First and second sound velocities along the melting curve of 4He
N. E. DyuminPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovS. V. SvatkoPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovV. N. Grigor’evPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov
ABI
Аннотация
First and second sound velocities along the melting curve are measured in the temperature range from Tλ to 1.0 K. The second sound velocity is shown to be described successfully by a thermodynamic expression taking into account the thermal expansion of He II. The first sound velocity along the melting curve is found to be temperature independent.
Ҳали таржима қилинмаган
Мавзулар
Идентификаторлар
Иқтибослар ва манбалар
0 та иқтибос4 та фойдаланилган манба