Phys. Rev. Lett. Phys. Rev. A Phys. Rev. B Phys. Rev. C Phys. Rev. D Phys. Rev. E Phys. Rev. ST AB Rev. Mod. Phys. Phys. Rev. (Series I) Phys. Rev. Volume: Page/Article:

Phys. Rev. B 36, 1280–1283 (1987)

[Issue 2 – 15 July 1987 ]

[ Previous article | Next article | Issue 2 contents ]

Spin- and angle-resolved photoemission study of ultrathin Gd films on Fe(100)

C. Carbone and E. Kisker

Institut für Festkörperforschung der Kernforschungsanlage Jülich, D-5170 Jülich, West Germany

Using spin-resolved photoemission with synchrotron radiation, we have studied the electronic structure of the Gd/Fe(100) interface. For Gd films up to one monolayer thickness, we find a high Gd 4f-electron spin polarization which is antiparallel to that of the Fe valence bands. This is the first direct observation of high Gd 4f-electron polarization. The main effect of the Gd adsorption on the Fe-derived valence bands is a depolarization. For thick Gd films (>35 A-ring) the observed Gd 4f polarization is small even well below the Gd T_C.

©1987 The American Physical Society

URL: http://link.aps.org/abstract/PRB/v36/p1280
DOI: 10.1103/PhysRevB.36.1280
PACS: 73.60.Aq, 75.25.+z, 79.60.Gs

[ Previous article | Next article | Issue 2 contents ]

References

1. For a review, see, e.g., R. J. Gambino and T. R. McGuire, J. Magn. Magn. Mater. 54" ndash bold "57, 1365 (1986).
2. J. L. Erskine and E. A. Stern, Phys. Rev. B 8, 1239 (1973).
3. K. Sato and Yuji Togami, J. Magn. Magn. Mater. 35, 181 (1983) [ INSPEC].
4. M. Taborelli, R. Allenspach, G. Boffa and M. Landolt, Phys. Rev. Lett. 26, 2869 (1986); R. Allenspach, M. Taborelli and M. Landolt, Phys. Rev. B 34, 6112 (1986).
5. E. Kisker, K. Schröder, W. Gudat and M. Campagna, Phys. Rev. B 31, 329 (1985).
6. J. K. Lang, Y. Baer and P. A. Cox, J. Phys. F 11, 121 (1981) [ INSPEC].
7. G. K. Wertheim, A. Rosencwaig, R. L. Cohen and H. J. Guggenheim, Phys. Rev. Lett. 27, 505 (1971).
8. J. J. Yeh and I. Lindau, At. Data Nucl. Data Tables 32, 1 (1985) [ INSPEC].
9. E. Kisker, J. Magn. Magn. Mater. 45, 23 (1984) [ INSPEC].
10. E. M. Haines, R. Clauberg and R. Feder, Phys. Rev. Lett. 54, 932 (1985).
11. V. Korenman, J. Murray and R. E. Prange, Phys. Rev. B 16, 4032 (1977).
12. A. B. Besznosov, V. V. Eremenko and V. P. Gnezdilov, J. Magn. Magn. Mater. 43, 243 (1984) [ INSPEC].
13. F. Meier, D. Pescia and M. Baumberger, Phys. Rev. Lett. 49, 747 (1982).
14. M. Farle and K. Baberschke, Phys. Rev. Lett. 58, 511 (1987).
15. M. Ponomarev, J. Magn. Magn. Mater. 61, 129 (1986) [ INSPEC].

[ Previous article | Next article | Issue 2 contents ]