The atomic kinetic energy in liquid <sup>4</sup>He
A D B Woods; V F Sears; A D B Woods; Atomic Energy of Canada Ltd., Chalk River, Ont., Canada; V F Sears; Atomic Energy of Canada Ltd., Chalk River, Ont., Canada
Журнал:
Journal of Physics C: Solid State Physics
Дата:
1977-06-28
Аннотация:
The average kinetic energy per atom, (KE), is determined for liquid <sup>4</sup>He from an analysis of low-order frequency moments of the dynamic structure factor, S(Q, omega ), obtained from neutron-scattering experiments with wavevector transfers in the range 60<or=Q<or=80 nm<sup>-1</sup>. It is found that (KE)/k<sub>B</sub> has the value 13.5+or-1.2K at T=1.1K and 14.1+or-1.0K at T=4.2K.
318.0Кб