Attenuation of second sound in superfluid 3He-A1 |
| |
Authors: | Sato Coleman de Vegvar PG Kojima Okuda |
| |
Affiliation: | Serin Physics Laboratory, Rutgers University, Piscataway, New Jersey 08854, USA. |
| |
Abstract: | The attenuation of second sound (spin-entropy) wave in the superfluid A1 phase has been measured in magnetic fields up to 11 T and to sufficiently high frequency to observe the bulk attenuation proportional to the square of frequency. The measured attenuation coefficient is compared with the existing theories of hydrodynamics and dissipative coefficients. The resulting "excess" attenuation is discussed in terms of the temperature dependent spin diffusion coefficient in the superfluid. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|