3 ms·
So the effect was known for a long time, and the new development is that it was now observed at higher temperatures. But 120 K is still pretty cold, so it doesn
by pps43 8y ago
So the effect was known for a long time, and the new development is that it was now observed at higher temperatures. But 120 K is still pretty cold, so it doesn't really matter much for practical applications.
- freethemullet 8y agoDepending on the concentration of defects and the length scale of the system, theory suggests that it may be possible to observe second sound at much higher temperatures beyond 120 K.