Abstract
In the heat-capacity (C) measurements of submonolayer and low-density second layer 3He solid films adsorbed on graphite surfaces, anomalous C∝Tα (α≈−1) dependence has been observed in wide temperature ranges. It is attributed to the strong competition between several multiple spin exchange (MSE) interactions. And the competition is thought to be caused by the corrugation of adsorption potential of the substrate. The detailed analysis shows that the coverage-dependence of the exponent α has some features. These features can be explained by the change in strength of MSE competition due to the change of the adsorption structure, i.e., the existence of zero-point vacancy, commensurate-incommensurate phase transition, and some specific adsorption structures. This supports that the MSE competition is responsible to anomalous T-dependence of C.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
REFERENCES
H. Godfrin and H. J. Lauter, Progress in Low Temperature Physics edited by W. P. Halperin (Elsevier, Amsterdam, 1995), vol. XIV, p.213, and references therein.
M. Roger, Phys. Rev. B 30, 6432 (1984).
D. S. Greywall and P. A. Busch, Phys. Rev. Lett. 65 , 2788 (1990).
H. Ikegami, K. Obara. D. Ito, and H. Ishirnoto, Phys. Rev. Lett. 81, 2478 (1998).
H. Franco, R. E. Rapp, and H. Godfrin, Phys. Rev. Lett. 57 , 1161 (1986).
H. Gotifrin, K.-D. Morhard, R. E. Rapp, and Yu. M. Bunkov, Physica B 194–196, 675 (1994).
H. Godfrin, R. R. Rurl, and D. D. Osheroff, Phys. Reu. Lett. 60, 305 (1988).
D. S. Greywall. Phys. Rev. B 41. 1842 (1990).
The conversion between the total density ρ and the second layer density ρ 2 is performed according to M. Roger, C.Bauerle, H. Godfrin, L. Pricoupenko, and J. Twiner, J. Low Temp. Phys. 112, 451 (1998).
M. Morishita. H. Nagatani, and Hiroshi Fukuyarna, Physica B, 284–288, 220 (2000)
Milton W. Cole, D. R. Frankl, and David L. Goodstein, Rev. Mod. Phys. 53, 199 (1981).
M. Roger, C. Baurrle, Yu. M. Bunkov, A.-S. Chen, and H. Godfrln, Phys. Rev. Lett. 80, 1308 (1998); M. Roger, C. Bauerle, and H. Godfrin; J. Low Temp. Phys. 113, 249 (1998).
R..A. Guyer, Phys. Reu. Lett. 39, 1091 (1977).
S. V. Hering, S. W. Van Sciver, and O. E. Vilches, J Low Temp. Phys. 25 , 793 (1976).
M. Bretz, J. G. Dash, D. C. Hickernell, E. O. McLean, and O. E. Vilches, Rhys. Rev. A 8, 1589 (1973).
M. Morishita and T. Takagi, to be published.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Morishita, M. Influence of Corrugation of Adsorption Potential on Competition of Multiple-Spin-Exchanges. Journal of Low Temperature Physics 121, 477–482 (2000). https://doi.org/10.1023/A:1017574318778
Issue Date:
DOI: https://doi.org/10.1023/A:1017574318778