Abstract
For thin films of 4He at low temperatures the addition of sub-monolayer numbers of 3He atoms results in the 3He residing in a ground state at the free surface of the 4He film. For low 3He coverage the 3He are a nearly ideal two-dimensional Fermi system. With increasing numbers of 3He atoms the interactions among the 3He increase. The results from a number of experiments that reveal the remarkable properties of this rich, interacting, two-dimensional 3He system are described. These results include the magnetization, the energetics of the 3He atoms in quantum states, the diffusion of the 3He along the 4He film, and the 3He effective mass. The techniques employed include NMR, specific heat, quartz crystal microbalance and third sound. A clearer picture of the properties of the 3He is now emerging, and preliminary numbers for the 3He coverage dependence of the Fermi Liquid parameters are presented. Prospects for the observation of superfluidity of the 3He in this system are discussed.
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REFERENCES
A.F. Andreev, Zh. Eksp. Teor. Fiz. 50, 1415 (1966); Sov. Phys. JETP 23,939 (1966)
D.O. Edwards and W.F. Saam, Prog. Low Temp. Phys., vol. VIIA, ch. 4, p. 284, ed. D.F. Brewer, (North Holland, 1978).
F.M. Ellis, M.D. Miller, R.A. Guyer and R.B. Hallock, Phys. Rev. Letters 46, 146 (1981).
B.K. Bhattacharyya, M.J. DiPirro and F.M. Gasparini, Phys. Rev. B 30, 5029 (1984)
J.M. Valles, Jr., R.H. Higley, B.R. Johnson and R.B. Hallock, Phys. Rev. Letters 60, 428 (1988)
F.M. Gasparini, B.K. Bhattacharyya and M.J. DiPirro, Phys. Rev. B 29, 4921 (1984); D.S. Sherrill and D.O. Edwards, Phys. Rev. B 31, 1338 (1985)
E.M. Krotscheck, Phys. Rev. B 32, 5713 (1985); B.E. Clements, E. Krotscheck and M. Saarela, Phys. Rev. B 55, 5959 (1997).
N. Pavloff and J. Treiner, J. Low Temp. Phys. 83, 331 (1991).
R.B. Hallock, Prog. Low Temp. Phys., ed. W.P. Halperin, (North Holland, Amsterdam), vol. XIV, ch. 5, 321–443, 1995, and references therein.
R.H. Higley, D.T. Sprague and R.B. Hallock, Phys. Rev. Letters, 63, 2570 (1989).
R.B. Hallock, Physics Today, 51, 30 (1998).
N. Alikacem, D.T. Sprague and R.B. Hallock, Phys. Rev. Letters, 67, 2501 (1991); D.T. Sprague, N. Alikacem, P. Sheldon and R.B. Hallock, Phys. Rev. Letters, 72, 382 (1994).
P.A. Sheldon and R.B. Hallock, Phys. Rev. Letters 77, 2973 (1996).
P.A. Sheldon and R.B. Hallock, to be published
K. Miyake and W.J. Mullin, J. Low Temp. Phys. 56, 499 (1984)
M. Dann, J. Nyeki, B.P. Cowan and J. Saunders, Phys. Rev. Letters 82, 4030 (1999).
P.C. Ho and R.B. Hallock, this volume.
For both graphite and Nuclepore, solid 4He resides on the substrate and the thickness of the liquid is deduced from the known total 4He coverage and rea-sonable estimates or measurements of the solid coverage.
M.Y. Kagan, Physics-Uspekhi 37, 69 (1994).
A.V. Chubukov, Phys. Rev. B 48, 1097 (1993).
E.P. Bashkin, Sov. Phys. JETP 51, 181 (1980).
K. Shirahama and F. Pobell, Physica B 194–196, 863 (1994).
M.Y. Kagan and A.V. Chubukov, Pis'ma Zh. Eksp. Teor. Fiz. 50, 483 (1989) [JETP Lett. 50, 517 (1989)].
This experiment will utilize third sound techniques and is expected to be carried out in collaboration with D.D. Osheroff at Stanford University.
P.J. Nacher and J. Dupont-Roc, Phys. Rev. Letters 67, 2966 (1991); K.S. Ke-tola, S. Wang and R.B. Hallock, Phys. Rev. Letters 68, 201 (1992).
K.S. Ketola and R.B. Hallock, Phys. Rev. Letters 71, 3295 (1993).
M.-T. Chen, J. M. Roesler, and J. M. Mochel, J. Low Temp. Phys. 89, 125 (1992).
P.S. Ebey, P.T. Finley and R.B. Hallock, J. Low Temp. Phys. 110, 635 (1998).
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Hallock, R.B. The Two-Dimensional World of 3He in 3He-4He Mixture Films. Journal of Low Temperature Physics 121, 441–450 (2000). https://doi.org/10.1023/A:1017514100122
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DOI: https://doi.org/10.1023/A:1017514100122