Surface contribution to the specific heat of he II filmsSpringer Science and Business Media LLC - Tập 10 - Trang 225-230 - 1973
S. L. Chan
The surface contribution to the specific heat of saturated and unsaturated He II films has been considered. The temperature dependence of the surface-contributed specific heat is found to depend on the range of temperatures as well as the film thickness under consideration. A comparison with earlier results is made, and it is found that those results are not consistent with the specific heat contr...... hiện toàn bộ
Studies of the dielectric constant in solid H2,4He, and NeSpringer Science and Business Media LLC - Tập 25 - Trang 353-368 - 1976
D. G. Haase, H. Meyer
Measurements of the static dielectric constant ε and of the resulting polarizability αCM defined by the Clausius-Mosotti relation are reported for several molecular solids under conditions of quasiconstant density. The range of measurements was between 0.4 and about 15 K, and pressures up to about 1 kbar were used. In solid H2, the changes of α as a function of ortho concentration are reported at ...... hiện toàn bộ
Design, Fabrication and Measurement of Pyramid-Type Antireflective Structures on Columnar Crystal Silicon Lens for Millimeter-Wave AstronomySpringer Science and Business Media LLC - Tập 193 - Trang 976-983 - 2018
T. Nitta, Y. Sekimoto, T. Hasebe, K. Noda, S. Sekiguchi, M. Nagai, S. Hattori, Y. Murayama, H. Matsuo, A. Dominjon, W. Shan, M. Naruse, N. Kuno, N. Nakai
Pyramid-type antireflective subwavelength structures for large-diameter (
$$> 30\hbox { cm}$$
) silicon lenses are promising for broadband astronomical observations. The refractive index and dielectric loss tangent of the lens material, columnar cr...... hiện toàn bộ
Boundary effects on sound propagation in superfluidsSpringer Science and Business Media LLC - Tập 51 - Trang 81-98 - 1983
H. Højgaard Jensen, H. Smith, P. Wölfle
The attenuation of fourth sound propagating in a superfluid confined within a channel is determined on a microscopic basis, taking into account the scattering of the quasiparticles from the walls. TheQ value of a fourth-sound resonance is shown to be inversely proportional to the stationary flow of thermal excitations through the channel due to an external force. Our theoretical estimates ofQ are ...... hiện toàn bộ
On the Dipole Moment of Quantized Vortices in the Presence of FlowsSpringer Science and Business Media LLC - Tập 185 - Trang 384-391 - 2016
S. I. Shevchenko, A. M. Konstantinov
The polarization charge
$$\rho _\mathrm {pol}$$
of an inhomogeneous superfluid system is expressed as a function of the order parameter
$$\Phi (\mathbf{r}_1 ,\mathbf{r}...... hiện toàn bộ