Acoustic and optical investigations of superfluid 3He

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School of Science | Doctoral thesis (article-based)
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Pekola, Jukka
liquid helium, superfluidity, quantum fluids, acoustics, optics
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  • [Publication 1]: J.P. Pekola, K. Torizuka, J.M. Kyynäräinen, A.J. Manninen, W. Wojtanowski, and G.K. Tvalashvili, The Re-entrant Normal Flapping Mode in the Dipolar Boundary Layers of 3He-A, Europhys. Lett. 13, 155 (1990)
  • [Publication 2]: J.P. Pekola, K. Torizuka, A.J. Manninen, J.M. Kyynäräinen, and G.E. Volovik, Observation of a Topological Transition in the A3 Vortices, Phys. Rev. Lett. 65, 3293 (1990); Erratum, Phys. Rev. Lett. 67, 1055 (1991)
  • [Publication 3]: J.M. Kyynäräinen, J.P. Pekola, A.J. Manninen, and K. Torizuka, Superfluid 3He in Strong Magnetic Fields: Anomalous Sound Attenuation in the B Phase and Evidence for Splitting of the AB Transition, Phys. Rev. Lett. 64, 1027 (1990)
  • [Publication 4]: J.M. Kyynäräinen, J.P. Pekola, K. Torizuka, A.J. Manninen, and A.V. Babkin, Zero-Sound Attenuation in Rotating and Stationary 3He-A and 3He-B, J. Low Temp. Phys. 82, 325 (1991)
  • [Publication 5]: R.H. Salmelin, J.P. Pekola, A.J. Manninen, K. Torizuka, M.P. Berglund, J.M. Kyynäräinen, O.V. Lounasmaa, G.K. Tvalashvili, O.V. Magradze, E. Varoquaux, O. Avenel, and V.P. Mineev, Coupling of Zero Sound to the Real Squashing Mode in Rotating 3He-B, Phys. Rev. Lett. 63, 620 (1989)
  • [Publication 6]: J.M. Kyynäräinen, A.J. Manninen, K. Torizuka, A.V. Babkin, R.H. Salmelin, G.K. Tvalashvili, and J.P. Pekola, Ultrasonic Spectroscopy of Rotating 3He-B, Zh. Eksp. Teor. Fiz. 98, 516 (1990) [Sov. Phys. JETP 71, 287 (1990)]
  • [Publication 7]: K. Torizuka, J.P. Pekola, A.J. Manninen, J.M. Kyynäräinen, and R.H. McKenzie, Two-Phonon Absorption by the Real Squashing Mode in Superfluid 3He-B, Phys. Rev. Lett. 66, 3152 (1991)
  • [Publication 8]: A.J. Manninen, H. Alles, A.V. Babkin, J.P. Pekola, and R.H. McKenzie, Observation of Dispersion in the J = 2+ Collective Modes of 3He-B by Nonlinear Acoustic Spectroscopy, Phys. Rev. Lett. 68, 3725 (1992)
  • [Publication 9]: A.J. Manninen, H. Alles, K. Torizuka, A.V. Babkin, and J.P. Pekola, Experiments on Nonlinear Acoustics in 3He-B, Report TKK-F-A713 (1993) [to be submitted to J. Low Temp. Phys.]
  • [Publication 10]: A.J. Manninen, H. Alles, A.V. Babkin, and J.P. Pekola, A Prestudy of Optical Imaging on Superfluid 3He, Physica B 178, 352 (1992)
  • [Publication 11]: A.J. Manninen, J.P. Pekola, G.M. Kira, J.P. Ruutu, A.V. Babkin, H. Alles, and O.V. Lounasmaa, First Optical Observations of Superfluid 3He, Phys. Rev. Lett. 69, 2392 (1992)
  • [Publication 12]: E.B. Sonin and A.J. Manninen, Downfall of the Vortex Dimple in Superfluids, Phys. Rev. Lett. 70, 2585 (1993)