Advertisement

Springer Nature is making Coronavirus research free. View research | View latest news | Sign up for updates

Positron annihilation in copper: Ak-space analysis

  • 32 Accesses

  • 21 Citations

Abstract

A new approach to the analysis of positron-annihilation long-slit angular distributions which can provide a more direct reflection of Fermi surface profile has been described in a recent publication. The analysis involves the periodic superposition of angular distributions which has the effect of converting a momentum distribution into a distribution in reduced Bloch wave vectorsk. When applied to data for a Cu crystal, having the resolved momentum component parallel to the [110] direction, the analysis results in excellent agreement with the computed surface of Halse and also provides a guide to the form and intensity of the angular distribution for core electron annihilation.

A similar treatment of the results for a [100] orientation, at first sight, appears less encouraging. However, a more careful appraisal supports the general value of the approach, the validity of the analysis for the [110] crystal orientation, and gives further clues to the form and anisotropy of the core distributions for Cu single crystals.

This is a preview of subscription content, log in to check access.

References

  1. 1.

    A.T.Stewart: InPositron Annihilation, ed. by A. T. Stewart L. O. Roellig (Academic Press, New York 1967) p. 17

  2. 2.

    R.N.West: Advanc. Phys.22, 263 (1973)

  3. 3.

    D.Schoenberg: InThe Physics of Metals, Vol. 1, ded. by J. M. Ziman (C.U.P. Cambridge 1969) p. 62

  4. 4.

    D.Ll.Williams, E.H.Becker, P.Petjevich, G.Jones: Phys. Rev. Letters20, 448 (1968)

  5. 5.

    D.G.Lock, V.H.C.Crisp, R.N.West: J. Phys. F. (Metal Phys.)3, 561 (1973)

  6. 6.

    M.R.Halse: Phil. Trans. Roy. Soc.265, 507 (1969)

  7. 7.

    J.C.Slater:Quantum Theory of Molecules and Solids (McGraw-Hill, New York 1965) Vol. 2

  8. 8.

    S.Berko, J.S.Plaskett: Phys. Rev.112, 1877 (1958)

  9. 9.

    A.G.Gould, R.N.West, B.G.Hogg: Canad. J. Phys.50, 2294 (1972)

  10. 10.

    W.Jones, N.H.March:Theoretical Solid State Physics (Wiley, London 1973) Vol. 1

  11. 11.

    P.Mijnarends: Physica63, 235 (1973)

  12. 12.

    M.H.Cohen, V.Heine: InSolid State Physics, Vol. 24, ed. by F.Seitz, D.Turnbull (Gordon and Breech, New York 1970)

  13. 13.

    J.J.Donaghy, A.T.Stewart: Phys. Rev.164, 396 (1967)

  14. 14.

    B.B.J.Hede, J.P.Carbotte: J. Phys. Chem. Solids33, 727 (1962)

  15. 15.

    J.P.Carbotte, A.Salvadori: Phys. Rev.162, 290 (1967)

  16. 16.

    S.Kahana: Phys. Rev.129, 1622 (1963)

  17. 17.

    K.Fujiwara, T.Hyodo, J.Ohyama: J. Phys. Soc. Japan33, 1047 (1972)

  18. 18.

    K.Fujiwara, T.Hyodo: J. Phys. Soc. Japan35, 1664 (1973)

  19. 19.

    E.M.D.Senicki, E.H.Becker, A.G.Gould, B.G.Hogg: Phys. Letters41A, 293 (1972).

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Lock, D.G., West, R.N. Positron annihilation in copper: Ak-space analysis. Appl. Phys. 6, 249–256 (1975). https://doi.org/10.1007/BF00883759

Download citation

Index Headings

  • Positron
  • Copper