Rotating 3HeA2in the vicinity of the transition to the Al phase

✍ Scribed by B.N. Kiviladze; G.A. Kharadze; J.M. Kyynäräinen

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 217 KB
• Volume: 165-166
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/s0921-4526(90)81165-k

✦ Synopsis

We show that, owing to a decrease in the dipolar energy, the soft cores of the nonsingular, doubly quantized vortices in 3He-A expand and become ellipsoidal upon approaching the A1 phase. Results of zero sound experiments in rotating 3 He-A2, very near the A2A1 transition, support this conclusion. The experimental data was analyzed by a geometrical acoustics method, using theoretically calculated attenuation and velocity parameters.