The mobility of positive ions has been measured in the normal and superfluid phases of 3He at several pressures. Below 100 mK the normal phase mobility increases logarithmically with decreasing temperature down to the superfluid transition temperature T c; it shows an anomalous jump near 100 mK. At low temperatures the drift velocity is nonlinear for electric fields exceeding 30 V/cm. In the superfluid the mobility, normalized to its value at T c, is much less than for negative ions. We have also observed the anisotropic mobility in the A phase and the Landau critical velocity for pair-breaking in both superfluid phases.
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References
A. I. Ahonen, J. Kokko, O. V. Lounasmaa, M. A. Paalanen, R. C. Richardson, W. Schoepe, and Y. Takano, Phys. Rev. Lett. 37, 511 (1976).
A. I. Ahonen, J. Kokko, M. A. Paalanen, R. C. Richardson, W. Schoepe, and Y. Takano, J. Low Temp. Phys. 30, 205 (1978).
P. D. Roach, J. B. Ketterson, and P. R. Roach, Phys. Rev. Lett. 39, 626 (1977).
P. D. Roach, J. B. Ketterson, and P. R. Roach, Phys. Lett. 63A, 273 (1977).
P. A. Alexander, C. N. Barber, P. V. E. McClintock, and G. R. Pickett, Phys. Rev. Lett. 39, 1544 (1977).
B. D. Josephson and J. Lekner, Phys. Rev. Lett. 23, 111 (1969).
G. Baym, C. J. Pethick, and M. Salomaa, Phys. Rev. Lett. 38, 845 (1977).
A. I. Ahonen, P. M. Berglund, M. T. Haikala, M. Krusius, O. V. Lounasmaa, and M. A. Paalanen, Cryogenics 16, 531 (1975).
J. G. Daunt, S. G. Hedge, and E. Lerner, in Monolayer and Submonolayer Helium Films, J. G. Daunt, and E. Lerner, eds. (Plenum Press, New York, 1973), p. 19.
P. D. Roach, J. B. Ketterson, and P. R. Roach, in Quantum Fluids and Solids, S. B. Trickey, E. D. Adams, and J. W. Dufty, eds. (Plenum Press, New York, 1977), p. 259.
A. L. Fetter, in The Physics of Liquid and Solid Helium, K. H. Bennemann and J. B. Ketterson, eds. (Wiley, New York, 1976), pp. 242–305.
K. R. Atkins, Phys. Rev. 116, 1339 (1959).
R. M. Bowley, J. Phys. C, to be published; and preprint.
R. M. Bowley, private communication.
W. P. Halperin, thesis, Cornell University 1975.
A. L. Fetter and J. Kurkijärvi, Phys. Rev. B 15, 4272 (1977).
T. Soda, Prog. Theor. Phys. 53, 903 (1975).
R. M. Bowley, J. Phys. C 2, L151 (1976).
T. Soda, Prog. Theor. Phys. 58, 1096 (1977).
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Work supported by the Academy of Finland.
On leave of absence from Regensburg University, Regensburg, West Germany, supported by Deutsche Forschungsgemeinschaft.
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Kokko, J., Paalanen, M.A., Schoepe, W. et al. Positive ion mobility in normal and superfluid 3He. J Low Temp Phys 33, 69–78 (1978). https://doi.org/10.1007/BF00117066
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DOI: https://doi.org/10.1007/BF00117066