Determination of the Voigt constant of phthalocyanines by magneto-optical Kerr-effect spectroscopy

Physical Review B - Condensed Matter and Materials Physics

Volumn 79, Issue 23, 2009, Pages

  Fronk, M ^a   Brauer B ^a   Kortus, J ^b   Schmidt, O G ^c   Zahn, D R T ^a   Salvan, G ^a  

^a CHEMNITZ UNIVERSITY OF TECHNOLOGY   (Germany)

^b TU BERGAKADEMIE FREIBERG   (Germany)

^c IFW DRESDEN   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 67650083415     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.79.235305     Document Type: Article

References (25)

1. A. K. Zvezdin and V. A. Kotov, Modern Magnetooptics and Magnetooptical Materials (IOP Publishing Ltd, Philadelphia, PA, 1997).
2. S. Sugano and N. Kojima, Magneto-Optics (Springer-Verlag, Berlin, Heidelberg, New York, 2000).
3. J. Zak, E. R. Moog, C. Liu, and S. D. Bader, Phys. Rev. B 43, 6423 (1991). 10.1103/PhysRevB.43.6423
4. A. Bauer, habilitation script, FU Berlin, 2000.
5. T. Herrmann, K. Lüdge, W. Richter, K. G. Georgarakis, P. Poulopoulos, R. Nünthel, J. Lindner, M. Wahl, and N. Esser, Phys. Rev. B 73, 134408 (2006). 10.1103/PhysRevB.73.134408
6. J. Mack, M. J. Stillman, and N. Kobayashi, Coord. Chem. Rev. 251, 429 (2007). 10.1016/j.ccr.2006.05.011
7. N. Kobayashi and K. Nakai, Chem. Commun. (Cambridge) 2007, 4077. 10.1039/b704991a
8. R. F. Ziolo and C. H. Griffiths, J. Chem. Soc. Dalton Trans. 11, 2300 (1980). 10.1039/dt9800002300
9. H. Angermann, W. Henrion, M. Rebien, and A. Röseler, Appl. Surf. Sci. 235, 322 (2004). 10.1016/j.apsusc.2004.05.105
10. M. Nakamura, Y. Morita, Y. Mori, A. Ishitani, and H. Tokumoto, J. Vac. Sci. Technol. B 14 (2), 1109 (1996). 10.1116/1.588409
11. EXCITING version 0.9.145, http://exciting.sourceforge.net/
12. A. Hoshino, Y. Takenaka, and H. Miyaji, Acta Crystallogr., Sect. B: Struct. Sci. 59, 393 (2003). 10.1107/S010876810300942X
13. J. P. Perdew and Y. Wang, Phys. Rev. B 45, 13244 (1992). 10.1103/PhysRevB.45.13244
14. C. Ambrosch-Draxl and J. O. Sofo, Comput. Phys. Commun. 175, 1 (2006). 10.1016/j.cpc.2006.03.005
15. The optical constants do not vary with film thickness. Fig. 2 is representative for all presented thicknesses. Thus changes of the dielectric properties with thickness are excluded and they cannot be responsible for the shifts.
16. B. Johs and C. Herzinger, Guide to Using WVASE32 (J.A. Woolam Co. Inc., Lincoln, NE, 1995).
17. R. M. A. Azzam and N. M. Bashara, Ellipsometry and Polarized Light (North Holland, Amsterdem, 1999).
18. B. R. Hollebone and M. J. Stillman, J. Chem. Soc., Faraday Trans. 2 74, 2107 (1978). 10.1039/F29787402107
19. G. Giovannetti, G. Brocks, and J. van den Brink, Phys. Rev. B 77, 035133 (2008). 10.1103/PhysRevB.77.035133
20. A. Rosa and E. J. Baerends, Inorg. Chem. 33, 584 (1994). 10.1021/ic00081a029
21. V. G. Maslov, Opt. Spectrosc. 101, 853 (2006). 10.1134/S0030400X0612006X
22. B. Bräuer, M. Fronk, D. Lehmann, D. R. T. Zahn, and G. Salvan, J. Phys. Chem. B (to be published).
23. O. Gordan, M. Friedrich, and D. R. T. Zahn, Thin Solid Films 455-456, 551 (2004). 10.1016/j.tsf.2003.11.209
24. The procedure assumes that all molecules have the same tilt angle with the substrate and a random azimuthal alignment. While the latter assumption is a fairly good approximation, as known from reflection anisotropy spectroscopy measurements, the identification of α with the "average" tilt angle is a first-order approximation, which could be improved by introducing an angular distribution function. However, if Eq. 3 results in values close to the extreme cases of standing (α=90°) or lying (α=0°) molecules, the spread in the tilt angle of the molecules must be very narrow.
25. J. L. McInnes, E. Pidcock, V. S. Oganesyan, M. R. Cheesman, A. K. Powell, and A. J. Thomson, J. Am. Chem. Soc. 124, 9219 (2002). 10.1021/ja020456b