Applied Physics A

, Volume 49, Issue 5, pp 449–458 | Cite as

Magnetic properties of thin epitaxial films investigated by spin-polarized photoemission

  • M. Stampanoni
Article

Abstract

The surface sensitivity of the spin-polarized photoemission experiment was exploited to study two-dimensional magnetism. The magnetization of thin films of Fe, Co, and V in the monolayer (ML) range, grown on Cu(001) and Ag(001) single crystals, was measured as a function of perpendicularly applied field and temperature. Bcc Fe films and fcc Fe and Co films exhibit ferromagnetism down to the single monolayer range, while no evidence for ferromagnetism is found for V on Ag(001). All Co films are magnetized in plane and have a Curie temperature far above room temperature. A thickness dependence of the anisotropy and Curie temperature is observed for the two phases of Fe. Remanent magnetization perpendicular to the surface is found at 30 K for fcc Fe films thicker than 2 ML and for bcc Fe between 3 and 4 ML. The magnetic effects caused by coating and by interdiffusion are discussed in the light of measurements of Cu/Fe/Cu sandwiches and of overlayers obtained by simultaneous evaporation of Fe and Cu. The fcc Fe films are shown to be suitable for thermomagnetic writing.

PACS

75.70 79.60 75.60 68.55 

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References

  1. 1.
    U. Gradmann, R. Bergholz, E. Bergter: Thin Solid Films126, 107 (1985)Google Scholar
  2. 2.
    W. Daum, C. Stuhlmann, H. Ibach: Phys. Rev. Lett.60, 2741 (1988)Google Scholar
  3. 3.
    L. Gonzales, R. Miranda, M. Salmeron, J.A. Verges, F. Yindurain: Phys. Rev. B24, 3248 (1981)Google Scholar
  4. 4.
    Y. Darici, J. Marcano, H. Min, P.A. Montano: Surf. Sci.182, 477 (1987)Google Scholar
  5. 5.
    A. Clarke, P.J. Rous, M. Arnott, G. Jennings, R.F. Willis: Surf. Sci.192, L843 (1987)Google Scholar
  6. 6.
    R. Germar, W. Dürr, J.W. Krewer, D. Pescia, W. Gudat: Appl. Phys. A47, 393 (1988)Google Scholar
  7. 7.
    B.T. Jonker, K.-H. Walker, E. Kisker, G.A. Prinz, C. Carbone: Phys. Rev. Lett.57, 142 (1986)Google Scholar
  8. 8.
    D. Pescia, G. Zampieri, M. Stampanoni, G.L. Bona, R.F. Willis, F. Meier: Phys. Rev. Lett.58, 933 (1987)Google Scholar
  9. 9.
    M. Przybylsky, U. Gradmann: Phys. Rev. Lett.59, 1152 (1987)Google Scholar
  10. 10.
    B. Heinrich, K.B. Urquhart, A.S. Arrott, J.F. Cochran, K. Myrtle, T.S. Purcell: Phys. Rev. Lett.59, 1756 (1987)Google Scholar
  11. 11.
    N.C. Koon, B.T. Jonker, F.A. Volkening, J.J. Krebs, G.A. Prinz: Phys. Rev. Lett.59, 2463 (1987)Google Scholar
  12. 12.
    C. Liu, E.R. Moog, S.D. Bader: Phys. Rev. Lett.60, 2422 (1988)Google Scholar
  13. 13.
    S.D. Bader, E.R. Moog: J. Appl. Phys.61, 3729 (1987)Google Scholar
  14. 14.
    W.A.A. Macedo, W. Keune: Phys. Rev. Lett.61, 475 (1988)Google Scholar
  15. 15.
    C.L. Fu, A.J. Freemann, T. Oguchi: Phys. Rev. Lett.54, 2700 (1985)Google Scholar
  16. 16.
    J.G. Gay, R. Richter: Phys. Rev. Lett.56, 2728 (1986)Google Scholar
  17. 17.
    S. Blügel, M. Weinert, P.H. Dederichs: Phys. Rev. Lett.60, 1077 (1988)Google Scholar
  18. 18.
    R. Richter, J.G. Gay, J.R. Smith: Phys. Rev. Lett.54, 2704 (1985)Google Scholar
  19. 19.
    J.G. Gay, R. Richter: J. Appl. Phys.61, 3362 (1987)Google Scholar
  20. 20.
    D. Pescia, M. Stampanoni, G.L. Bona, A. Vaterlaus, R.F. Willis, F. Meier: Phys. Rev. Lett.58, 2126 (1987)Google Scholar
  21. 21.
    M. Stampanoni, A. Vaterlaus, M. Aeschlimann, F. Meier: Phys. Rev. Lett.59, 2483 (1987)Google Scholar
  22. 22.
    R. Halbauer, U. Gonser: J. Magn. Magn. Mat.35, 55 (1983)Google Scholar
  23. 23.
    C. Rau, C. Schneider, G. Xing, K. Jamison: Phys. Rev. Lett.57, 3221 (1986)Google Scholar
  24. 24.
    M.F. Onellion, C.L. Fu, M.A. Thompson, J.L. Erskine, A.J. Freeman: Phys. Rev. B33, 7322 (1986)Google Scholar
  25. 25.
    W. Becker, H.D. Pfannes, W. Keune: J. Magn. Magn. Mat.35, 55 (1983)Google Scholar
  26. 26.
    A. Amiri Hazaveh, G. Jennings, D. Pescia, R.F. Willis, K. Prince, M. Surman, A. Bardshaw: Solid State Commun.57, 329 (1986)Google Scholar
  27. 27.
    P.A. Montano, G.W. Fernando, B.R. Cooper, E.R. Moog, H.M. Naik, S.D. Bader, Y.C. Lee, Y.N. Darici, H. Min, J. Marcano: Phys. Rev. Lett.59, 1041 (1987)Google Scholar
  28. 28.
    C.S. Wang, B.M. Klein, H. Krakauer: Phys. Rev. Lett.54, 1852 (1985)Google Scholar
  29. 29.
    F.J. Pinsky, J. Staunton, B.L. Gyorffy, D.D. Johnson, G.M. Stocks: Phys. Rev. Lett.56, 2096 (1986)Google Scholar
  30. 30.
    V.L. Moruzzi: Phys. Rev. Lett.57, 2211 (1986)Google Scholar
  31. 31.
    C.L. Fu, AJ. Freeman: J. Magn. Magn. Mat.54, 777 (1985)Google Scholar
  32. 32.
    G.L. Bona, F. Meier, G. Schönhense, M. Aeschlimann, M. Stampanoni, G. Zampieri, H.C. Siegmann: Phys. Rev. B34, 7784 (1986)Google Scholar
  33. 33.
    S.T. Purcell, B. Heinrich, A.S. Arrott: Phys. Rev. B35, 6458 (1987)Google Scholar
  34. 34.
    W.F. Egelhoff: Phys. Rev. B30, 1052 (1984)Google Scholar
  35. 35.
    D. Chandesris, P. Roubin, G. Rossi: In Topics in Current Chemistry, Vol.147 (Springer, Berlin, Heidelberg 1988)Google Scholar
  36. 36.
    A maximal thickness of 17 layers is reported in [4]Google Scholar
  37. 37.
    D. Pescia: Private communicationGoogle Scholar
  38. 37a.
    J. Araya-Pochet, C.A. Ballentine, J.L. Erskine: Phys. Rev. B38, 7846 (1988)Google Scholar
  39. 38.
    S.A. Chambers, T.J. Wagener, J.H. Weaver: Phys. Rev. B36, 8992 (1987)Google Scholar
  40. 39.
    C.L. Chien, S.H. Liou, D. Kofalt, Wu Yu, T. Egami, T.R. McGuire: Phys. Rev. B33, 3247 (1986)Google Scholar
  41. 40.
    M. Stampanoni, A. Vaterlaus, D. Pescia, M. Aeschlimann, F. Meier, W. Dürr, S. Blügel: Phys. Rev. B37, 10380 (1988)Google Scholar
  42. 41.
    M. Campagna, D.T. Pierce, F. Meier, K. Sattler, H.C. Siegmann: Adv. Electron. Electron Phys.41, 113 (1976)Google Scholar
  43. 42.
    E. Kisker: J. Chem. Phys.87, 3597 (1983)Google Scholar
  44. 42a.
    E. Kisker, K. Schröder, W. Gudat, M. Campagna: Phys. Rev. B31, 329 (1985)Google Scholar
  45. 43.
    C. Kooy, U. Enz: Philips Res. Rep.15, 7 (1960)Google Scholar
  46. 44.
    H. Pascard, A. Globus: Phys. Rev. B24, 6610 (1981)Google Scholar
  47. 45.
    K.B. Urquhart, B. Heinrich, J.F. Cochran, A.S. Arrott, K. Myrtle: J. Appl. Phys.64, 5334 (1988)Google Scholar
  48. 46.
    J.A.C. Bland, D. Pescia, R.F. Willis: Phys. Rev. Lett.58, 1244 (1987)Google Scholar
  49. 47.
    D. Pescia, R.F. Willis, J.A.C. Bland: Surf. Sci.189/190, 724 (1987)Google Scholar
  50. 48.
    T. Beier, D. Pescia, M. Stampanoni, A. Vaterlaus, F. Meier: Appl. Phys. A47, 73 (1988)Google Scholar
  51. 49.
    R.F. Willis, J.A.C. Bland, W. Schwarzacher: J. Appl. Phys.63, 4051 (1988)Google Scholar
  52. 50.
    T. Beier, H. Jahrreiss, D. Pescia, Th. Woike, W. Gudat: Phys. Rev. Lett.61, 1875 (1988)Google Scholar
  53. 52.
    E.C. Stoner, E.P. Wohlfart: Philos. Trans. R. Soc. London, Ser. A240, 599 (1948)Google Scholar
  54. 53.
    M.P. Seah, W.A. Dench: Surf. Interfacial Anal.1, 1 (1979)Google Scholar
  55. 54.
    D.T. Pierce, H.C. Siegmann: Phys. Rev. B9, 4035 (1974)Google Scholar
  56. 55.
    G.W. Fernando, Y.C. Lee, P.A. Montano, B.R. Cooper, E.R. Moog, H.M. Naik, S.D. Bader: J. Vac. Sci. Technol. A5, 882 (1987)Google Scholar
  57. 56.
    D.R. Penn: Phys. Rev. B35, 483 (1987)Google Scholar
  58. 57.
    M. Taborelli: Ph. D. Thesis ETH Nr. 8545, Zurich 1988 (unpublished)Google Scholar
  59. 58.
    W. Eib, B. Reihl: Phys. Rev. Lett.40, 1674 (1978)Google Scholar
  60. 59.
    W. Drube, F.J. Himpsel: Phys. Rev. B35, 4131 (1987)Google Scholar
  61. 60.
    See for instance [57] and references thereinGoogle Scholar
  62. 61.
    U. Gradmann: Appl. Phys.3, 161 (1974)Google Scholar
  63. 62.
    V.L. Moruzzi, P.M. Marcus, K. Schwarz, M. Mohn: Phys. Rev. B34, 1784 (1986)Google Scholar
  64. 63.
    W. Dürr, M. Taborelli, O. Paul, R. Germar, W. Gudat, D. Pescia, M. Landolt: Phys. Rev. Lett.62, 206 (1989)Google Scholar
  65. 64.
    M. Farle, K. Baberschke: Phys. Rev. Lett.58, 511 (1987)Google Scholar
  66. 65.
    G.A.T. Allan: Phys. Rev. B1, 352 (1970)Google Scholar
  67. 66.
    M.N. Barber: In Phase transitions and critical phenomena, ed. by C. Domb, J.L. Lebowitz, Vol.8 (Academic, London 1983)Google Scholar
  68. 67.
    C.L. Fu, A.J. Freeman: Phys. Rev. B35, 925 (1987)Google Scholar
  69. 68.
    F. Meier, G.L. Bona, S. Hüfner: Phys. Rev. Lett.52, 1152 (1984)Google Scholar
  70. 69.
    H.J. Elmers, U. Gradmann: J. Appl. Phys.64, 5328 (1988)Google Scholar
  71. 70.
    D.A. Steigerwald, W.F. Egelhoff: Surf. Sci.192, L887 (1987)Google Scholar
  72. 71.
    D.A. Steigerwald, W.F. Egelhoff: Phys. Rev. Lett.60, 2558 (1988)Google Scholar
  73. 72.
    D. Pescia, M. Stampanoni, G.L. Bona, A. Vaterlaus, F. Meier, G. Jennings, R.F. Willis: Phys. Rev. Lett.60, 2559 (1988)Google Scholar
  74. 73.
    F. Meier, M. Aeschlimann, M. Stampanoni, A. Vaterlaus: Proc. Int. School of Physics “Enrico Fermi” (Varenna, 1988) (to be published)Google Scholar
  75. 74.
    A.H. Eschenfelder: Magnetic Bubble Technology (Springer, New York 1980)Google Scholar

Copyright information

© Springer-Verlag 1989

Authors and Affiliations

  • M. Stampanoni
    • 1
  1. 1.Laboratorium für FestkörperphysikETH-HönggerbergZürichSwitzerland

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