Interpretation of magnetic dichroism in angle-resolved UV photoemission from valence bands

Journal of Magnetism and Magnetic Materials

Volumn 170, Issue 1-2, 1997, Pages 29-39

  Venus, D ^a  

^a MCMASTER UNIVERSITY   (Canada)

Author keywords

Magnetic dichroism; Magnetic films; Valence band photoemission

Indexed keywords

BAND STRUCTURE; FERROMAGNETIC MATERIALS; MAGNETIC FIELD EFFECTS; MAGNETIC FILMS; MATHEMATICAL MODELS; ULTRAVIOLET RADIATION;

MAGNETIC DICHROISM;

PHOTOEMISSION;

EID: 0031162029     PISSN: 03048853     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0304-8853(97)00026-7     Document Type: Article

References (36)

1. C.M. Schneider, M.S. Hammond, P. Schuster, A. Cebollada, R. Miranda, J. Kirschner, Phys. Rev. B 44 (1991) 12066.
2. M. Getzlaff, Ch. Ostertag, G.H. Fecher, N.A. Cherepkov, G. Schönhense, Phys. Rev. Lett. 73 (1994) 3030.
3. A. Fansela, R. Schellenberg, F.U. Hillebrecht, E. Kisker, Solid State Commun. 96 (1995) 291.
4. D. Venus, W. Kuch, A. Dittschar, M. Zharnikov, C.M. Schneider, J. Kirschner, J. Appl. Phys. 79 (1996) 6504.
5. J.G. Gay, R. Richter, Phys. Rev. Lett. 56 (1986) 2728.
6. D. Wang, R. Wu, A.J. Freeman, Phys. Rev. Lett. 70 (1993) 869.
7. R.H. Victora, J.M. MacLean, Phys. Rev. B 47 (1993) 11583.
8. L. Baumgarten, C.M. Schneider, H. Petersen, F. Schäfers, J. Kirschner, Phys. Rev. Lett. 65 (1992) 492.
9. G.D. Waddill, J.G. Tobin, D.P. Pappas, Phys. Rev. B 46 (1992) 532.
10. D. Venus, L. Baumgarten, C.M. Schneider, C. Boeglin, J. Kirschner, J. Phys. 5 (1993) 1239.
11. Ch. Roth, F.U. Hillebrecht, H.B. Rose, E. Kisker, Solid State Commun. 86 (1993) 647.
12. C.M. Schneider, D. Venus, J. Kirschner, Phys. Rev. B 45 (1992) 5041.
13. D. Venus, Phys. Rev. B 48 (1993) 6144.
14. N.A. Cherepkov, Phys. Rev. B 50 (1994) 13813.
15. D. Venus, Phys. Rev. B 49 (1994) 8821.
16. E. Tamura, G.D. Waddill, J.G. Tobin, P.A. Sterne, Phys. Rev. Lett. 73 (1994) 1533.
17. G. van der Laan, Phys. Rev. B 51 (1995) 240.
18. F.U. Hillebrecht, H.B. Rose, T. Kinoshita, Y.U. Idzerda, G. van der Laan, R. Denecke, L. Ley, Phys. Rev. Lett. 75 (1995) 2883.
19. T. Scheunemann, S.V. Halilov, J. Henk, R. Feder, Solid State Commun. 91 (1994) 487.
20. J. Henk, S.V. Halilov, T. Scheunemann, R. Feder, Phys. Rev. B 50 (1994) 8130.
21. W. Kuch, M. Zharnikov, A. Dittschar, K. Meinel, C.M. Schneider, J. Kirschner, J. Henk, R. Feder, J. Appl. Phys. 79 (1996) 6426 and Phys. Rev. B 53 (1996) 11621.
22. W. Kuch, M. Zharnikov, A. Dittschar, K. Meinel, C.M. Schneider, J. Kirschner, J. Henk, R. Feder, J. Appl. Phys. 79 (1996) 6426 and Phys. Rev. B 53 (1996) 11621.
23. R. Feder, J. Henk, in: Spin-Orbit-Influenced Spectroscopies of Magnetic Solids, Eds. H. Ebert and G. Schütze, Springer-Verlag, Berlin, 1996.
24. R. Feder, in: R. Feder, Ed. Polarized Electrons in Surface Physics, Section 4.5.3, World Scientific, Singapore, 1985. In the one-step model, the initial and final states are calculated using the symmetry of the semi-infinite crystal. The three-step model uses electron states calculated according to bulk crystalline symmetry, and the excited electrons are subsequently transported to the surface and transmitted to the vacuum via a surface scattering matrix.
25. H.-P. Oepen, K. Hünlich, J. Kirschner, Phys. Rev. Lett. 56 (1986) 496.
26. J. Garbe, J. Kirschner, Phys. Rev. B 39 (1989) 9859.
27. D. Venus, W. Kuch, A. Dittschar, M. Zharnikov, C.M. Schneider, J. Kirschner, Phys. Rev. B 52 (1995) 6174.
28. C.J. Bradley, A.P. Cracknell, The Mathematical Theory of Symmetry in Solids, Clarendon, Oxford, 1972.
29. Note the important difference from Eq. (7) in the second term, where q → q′.
30. C.M. Schneider, J.J. de Miguel, P. Bressler, P. Schuster, R. Miranda, J. Kirschner, J. Electron. Spec. Rel. Phenom. 51 (1990) 263.
31. J. Callaway, C.S. Wang, Phys. Rev. B 16 (1977) 2095.
32. M. Getzlaff, J. Bansmann, G. Schönhense, Phys. Rev. Lett. 71 (1993) 793.
33. D. Li, J. Zhang, P.A. Dowben, K. Garrison, J. Phys. 5 (1993) L73.
34. J. Paul, G.H. Fecher, Th. Jentsch, Ch. Ostertag, M. Günther, B. Schmied, M. Getzlaff, G. Schönhense, in: Proc. 14th Int. Coll. on Magnetic Films and Surfaces: August, 1994, Düsseldorf, Germany, Elsevier, Amsterdam, 1995.
35. J. Hermanson, Solid State Commun. 22 (1977) 9.
36. κ(γ, - r)]*, Upon substitution of these expressions into Eqs. (A.4), (A.5), (B.3) and (B.4), the dichroism becomes entirely imaginary, and thus vanishes for linearly polarized light.