𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The effects of gravity in second-sound

✍ Scribed by T.C.P. Chui; D.R. Swanson

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
181 KB
Volume
165-166
Category
Article
ISSN
0921-4526

No coin nor oath required. For personal study only.

✦ Synopsis

We present a modified wave equation for second-sound propagation in an inhomogeneous medium. For extreme inhomogeneity we show that a new mode exists at low frequency, in which normal wavelike propagation is not possible. The nature of this mode is discussed.

πŸ“œ SIMILAR VOLUMES

Boundary effects in second sound near TΞ»
Boundary effects in second sound near TΞ»
✍ D.R. Swanson; T.C.P. Chui; K.W. Rigby; J.A. Lipa πŸ“‚ Article πŸ“… 1990 πŸ› Elsevier Science 🌐 English βš– 185 KB

We investigate the effect of non-ideal boundary conditions applied to a second sound resonator near the lambda point. Appropriate boundary conditions for He-II are applied to a second sound resonator with a heater and detector at either end. We find the analytic boundary value solution for the homog

A continuum approach to the second-sound
A continuum approach to the second-sound effect
✍ R. J. Atkin; N. Fox; M. W. Vasey πŸ“‚ Article πŸ“… 1975 πŸ› Springer Netherlands 🌐 English βš– 567 KB

Standard techniques of continuum mechanics are used to describe the flow of certain microscopic excitations which are believed to give rise to the second-sound phenomena in some materials at low temperatures. Appropriate balance laws are formulated, and constitutive equations for an elastic solid ar

Pinning of vortices in nucleopores. Effe
Pinning of vortices in nucleopores. Effect on second-sound resonators
✍ D. d'HumiΓ¨res; A. Launay; A. Libchaber πŸ“‚ Article πŸ“… 1980 πŸ› Springer US 🌐 English βš– 515 KB

Superleak second-sound transducers, used to measure superfluid turbulence in a cavity, exhibit complex phenomena associated with vortex pinning at the pore sites. These phenomena could be used to study vortex pinning and motion in nucleopores.

The myth of second sound in strontium ti
The myth of second sound in strontium titanate
✍ J.F Scott; A Chen; H Ledbetter πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 English βš– 226 KB

SrTiO 3 displays near 37 and 65 K a number of different anomalies, reported as early as 1961. In the past decade some additional phenomena have been discovered and interpreted [B.