Abstract
The dichroic effect (“rotated” polarization) in the reflectivity from a magnetically ordered sample is experimentally studied at the station PHASE of the Kurchatov Synchrotron Radiation Source. The experiments are performed for the Gd0.23Co0.77 film, which has a compensation temperature Tcomp ≈ 433 K, using linearly polarized radiation of the photon energy of 7930 eV (L2 absorption edge of gadolinium) at room temperature. The developed theory of reflectivity accounted for the magnetic contributions to the scattering amplitude predicts the appearance of a peak for the orthogonal (to the incident polarization) polarization of the reflected radiation near the critical angle of the total external reflection. The experiment reveals the significant difficulties because of the incomplete σ polarization of the synchrotron beam, the beam instability, and so on. Therefore, a rotated-polarization peak has been detected near the critical angle but at the limits of the measurement accuracy. In principle, our experimental technique could be an alternative to circular polarization experiments, which are widely used at synchrotrons to study magnetic ordering. However, as we have shown, it makes high demands of the radiation source parameters.
Similar content being viewed by others
References
S. G. Ovchinnikov, Phys. Usp. 42, 779 (1999).
J. B. Kortright, D. D. Awschalom, J. Stöhr, et al., J. Magn. Magn. Mater. 207, 7 (1999).
G. van der Laan, J. Phys.: Conf. Ser. 430, 012127 (2013).
C. Sorg, A. Scherz, K. Baberschke, et al., Phys. Rev. B 75, 064428 (2007).
N. Ishimatsu, H. Hashizume, S. Hamada, et al., Phys. Rev. B 60, 9596 (1999).
L. Séve, N. Jaouen, J. M. Tonnerre, et al., Phys. Rev. B 60, 9662 (1999).
N. Jaouen, G. van der Laan, T. K. Johal, et al., Phys. Rev. B 70, 094417 (2004).
F. de Bergevin and M. Brunel, Acta Crystallogr. A 37, 314 (1981).
M. Blume and D. Gibbs, Phys. Rev. B 37, 1779 (1988).
D. E. Moncton, D. Gibbs, and J. Bohr, Nucl. Instrum. Methods Phys. Res., Sect. A 246, 839 (1986).
D. Gibbs, D. R. Harshman, E. D. Isaacs, et al., Phys. Rev. Lett. 61, 1241 (1988).
J. Bohr, D. Gibbs, J. D. Axe, et al., Physica B 159, 93 (1989).
D. B. McWhan, C. Vettier, E. D. Isaacs, et al., Phys. Rev. B 42, 6007 (1990).
J. Bohr, J. Magn. Magn. Mater. 83, 530 (1990).
S. Langridge, G. H. Lander, N. Bernhoeft, et al., Phys. Rev. B 55, 6392 (1997).
V. Fernandez, C. Vettier, F. de Bergevin, et al., Phys. Rev. B 57, 7870 (1998).
W. Neubeck, C. Vettier, V. Fernandez, et al., J. Appl. Phys. 85, 4847 (1999).
R. Caciuffo, L. Paolasini, A. Sollier, et al., Phys. Rev. B 65, 174425 (2002).
D. P. Siddons, M. Hart, Y. Amemiya, et al., Phys. Rev. Lett. 64, 1967 (1990).
S. P. Collins, J. Phys.: Condens. Matter 11, 1159 (1999).
J. B. Kortright, M. Rice, and R. Carr, Phys. Rev. B 51, 10240 (1995).
J. B. Kortright, M. Rice, S.-K. Kim, et al., J. Magn. Magn. Mater. 191, 79 (1999).
H.-Ch. Mertins, F. Schäfers, A. Gaupp, et al., Phys. Rev. B 61, R874 (2000).
J. B. Kortright and Sang-Koog Kim, Phys. Rev. B 62, 12 (216) (2000).
H.-Ch. Mertins, P. M. Oppeneer, J. Kuneš, et al., Phys. Rev. Lett. 87, 047401 (2001).
D. P. Siddons, J. B. Hastings, G. Faigel, et al., Phys. Rev. Lett. 62, 1384 (1989).
T. S. Toellner, E. E. Alp, W. Sturhahn, et al., Appl. Phys. Lett. 67, 1993 (1995).
D. P. Siddons, U. Bergmann, and J. B. Hastings, Phys. Rev. Lett. 70, 359 (1993).
D. P. Siddons, U. Bergmann, and J. B. Hastings, Hyperfine Interact. 123/124, 681 (1999).
J. P. Hannon, G. T. Trammell, M. Blume, et al., Phys. Rev. Lett. 61, 1245 (1988).
S. A. Stepanov and S. K. Sinha, Phys. Rev. B 61, 15302 (2000).
R. Azzam and N. Bashara, Ellipsometry and Polarized Light (North-Holland, Amsterdam, 1977; Mir, Moscow, 1981).
G. N. Borzdov, L. M. Barkovskii, and V. I. Lavrukovich, Zh. Prikl. Spektrosc. 25, 526 (1976).
M. A. Andreeva and A. G. Smekhova, Appl. Surf. Sci. 252, 5619 (2006).
E. E. Odintsova and M. A. Andreeva, J. Surf. Invest.: X-ray, Synchrotron Neutron Tech. 4, 913 (2010).
M. A. Andreeva and Y. L. Repchenko, Crystallogr. Rep. 58, 1037 (2013).
M. A. Andreeva and Yu. L. Repchenko, https://doi.org/kftt.phys.msu.ru/index.php?id=47.
Y. Choi, D. Haskel, R. E. Camley, et al., Phys. Rev. B 70, 134420 (2004).
https://doi.org/henke.lbl.gov/optical_constants/getdb2.html.
B. L. Henke, Phys. Rev. A 6, 94 (1972).
G. M. Bedzyk, J. S. Bommarito, and J. S. Schildkraut, Phys. Rev. Lett. 62, 1376 (1989).
M. V. Koval’chuk, N. N. Novikova, and S. N. Yakunin, Priroda, No. 12, 3 (2012).
M. A. Andreeva and B. Lindgren, JETP Lett. 76, 704 (2002).
M. A. Andreeva and B. Lindgren, Phys. Rev. B 72, 125422 (2005).
L. G. Parratt, Phys. Rev. 95, 359 (1954).
R. Hasegawa, R. J. Gambino, and R. Ruf, Appl. Phys. Lett. 27, 512 (1975).
R. C. Taylor and A. Gangulee, J. Appl. Phys. 47, 4666 (1976).
N. Kawamura, M. Suzuki, H. Maruyama, et al., J. Synchrotr. Rad. 8, 425 (2001).
E. Meltchakov, H.-Ch. Mertins, M. Scheer, et al., J. Magn. Magn. Mater. 240, 550 (2002).
M. V. Ryabukhina, E. A. Kravtsov, D. V. Blagodatkov, L. I. Naumova, Yu. V. Nikitenko, V. V. Proglyado, and Yu. N. Khaydukov, J. Surf. Invest.: X-ray, Synchrotron Neutron Tech. 9, 41 (2015).
A. V. Svalov, G. V. Kurlyandskaya, K. G. Balymov, and V. O. Vas’kovskii, Phys. Met. Metallogr. 117, 876 (2016).
A. V. Svalov, G. V. Kurlyandskaya, and V. O. Vas’kovskiy, Appl. Phys. Lett. 108, 063504 (2016).
J. C. T. Lee, J. Chess, S. A. Montoya, et al., arXiv:1603.07882v1.
M. A. Andreeva, R. A. Baulin, M. M. Borisov, et al., in Proceedings of the Conference on X-Ray Optics, Chernogolovka, Moscow Region, Sept. 26–29, 2016, p. 6.
M. A. Andreeva, R. A. Baulin, A. I. Chumakov, et al., in Proceedings of the International Conference on the Applications ofthe Mössbauer Effect ICAME 2017, St.-Petersburg, Sept. 3–8, 2017, p. 37.
M. A. Andreeva, R. A. Baulin, A. I. Chumakov, and R. Rüffer, J. Appl. Phys. (2018, submitted).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © M.A. Andreeva, R.A. Baulin, M.M. Borisov, E.A. Gan’shina, G.V. Kurlyandskaya, E.Kh. Mukhamedzhanov, Yu.L. Repchenko, A.V. Svalov, 2018, published in Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2018, Vol. 153, No. 6, pp. 966–976.
Rights and permissions
About this article
Cite this article
Andreeva, M.A., Baulin, R.A., Borisov, M.M. et al. Magnetic Dichroism in the Reflectivity of Linearly Polarized Synchrotron Radiation from a Ti(10 nm)/Gd0.23Co0.77(250 nm)/Ti(10 nm) Sample. J. Exp. Theor. Phys. 126, 802–810 (2018). https://doi.org/10.1134/S1063776118050102
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063776118050102