Abstract
The structure of the states accessible to3He impurities in films of liquid4He on Nuclepore is investigated using a density functional approach with a finite-range effective interaction. In thick films, one finds that the two lowest states are localized in the surface region. For thinner films, the variation with film thickness of the first three states results from a delicate balance between the attractive tail of the substrate potential and the quantum finite-size effect. The existence of states localized in the second layer of the films is discussed. The energy difference between the ground state and the first excited state agrees with the recent determination of Higley, Sprague, and Hallock from magnetization measurements. The effective mass of the ground state has a structure similar to that obtained by Krotscheck and coworkers and exhibits a maximum for a4He coverage of 0.15 Å−2, in agreement with the data of Gasparini and coworkers. A similar behavior is predicted for the effective mass of the first, second, and third excited states. The structure of the energy spectrum may also explain former results on third-sound measurements in thin mixture films by Laheurte et al. and by Hallock.
Similar content being viewed by others
References
A. F. Andreev,Zh. Eskp. Teor. Fiz. 50, 1415 (1966) [Sov. Phys. JETP 23, 939 (1966)].
D. O. Edwards and W. F. Saam inProgress in Low Temperature Physics, D. F. Brewer, ed. (North-Holland, Amsterdam, 1978), vol. VIIA, p. 283.
B. K. Bhattacharyya, M. J. Di Pirro, and F. Gasparini,Phys. Rev. B 30, 5092 (1984), and references therein.
R. H. Higley, D. T. Sprague, and R. B. Hallock,Phys. Rev. Lett. 63, 2570 (1989), and references therein.
D. S. Sherrill and D. O. Edwards,Phys. Rev. B 31, 1338 (1985).
R. H. Anderson and M. Miller,Phys. Rev. B 40, 2109 (1989).
E. Krotscheck, G. X. Qian, and W. Kohn,Phys. Rev. B 31, 4245 (1985);
E. Krotscheck, M. Saarela, and J. L. Epstein,Phys. Rev. B 38, 111 (1988), and references therein;
E. Krotscheck, M. Saarela, and J. L. Epstein,Phys. Rev. Lett. 61, 1728 (1988).
F. Dalfovo and S. Stringari,Physica Scripta 38, 204 (1988).
N. Pavloff and J. Treiner,J. Low Temp. Phys. (in press).
V. R. Pandharipande, S. C. Pieper, and R. B. Wiringa,Phys. Rev. B 34, 4571 (1986).
S. Stringari and J. Treiner,Phys. Rev. B 36, 8369 (1987).
D. O. Edwards and P. P. Fatouros,Phys. Rev. B 17, 2147 (1978).
M. Himbert, J. Dupont-Roc, N. Pavloff, and J. Treiner,J. Low Temp. Phys. 81, 31 (1990).
P. Tarazona,Phys. Rev. A 31, 2672 (1985), and references therein.
R. Cowley and A. D. B. Woods,Can J. Phys. 49, 177 (1971).
D. O. Edwards, P. P. Fatouros, G. G. Ihas, P. Mrozinski, S. Y. Shen, F. M. Gasparini, and C. P. Tam,Phys. Rev. Lett. 34, 1153 (1975); U. Nayak, D. O. Edwards, and N. Masuhara,Phys. Rev. Lett. 50, 990 (1983)
N. Pavloff and J. Treiner, in preparation.
F. Dalfovo and S. Stringari,Phys. Lett. A 112, 171 (1985).
J. Epstein, E. Krotscheck, and M. Saarela,Phys. Rev. Lett. 64, 427 (1990).
H. J. Lauter, H. P. Schildberg, H. Godfrin, H. Wiechert, and R. Haensel,Can. J. Phys. 65, 1435 (1987), and references therein.
R. H. Higley, D. T. Sprague, and R. B. Hallock,Phys. Rev. B (submitted).
X. Wang and F. M. Gasparini,Phys. Rev. B 38, 11245 (1988).
J. C. Noiray, D. Sornette, J. P. Romagnan, and J. P. Laheurte,Phys. Rev. Lett. 53, 2421 (1984); J. P. Laheurte, J. C. Noiray, J. P. Romagnan, and D. Sornette,J. Phys. (Paris)47, 39 (1986).
R. B. Hallock,Can. J. Phys. 65, 1517 (1987).
B. Statt, private communication.
Author information
Authors and Affiliations
Additional information
Unité de Recherche des Universités Paris 11 et Paris 6 associée au CNRS.
Rights and permissions
About this article
Cite this article
Pavloff, N., Treiner, J. 3He impurity states on liquid4He: From thin films to the bulk surface. J Low Temp Phys 83, 331–349 (1991). https://doi.org/10.1007/BF00683631
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF00683631