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Electronic and Magnetic States of Pr and Mn in the Pr1–xSrxMnO3 Films Studied by XANES and XMCD Spectroscopy

  • Order, Disorder, and Phase Transition in Condensed System
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Abstract

The spectral dependences of X-ray absorption near-edge spectroscopy (XANES) and X-ray magnetic circular dichroism (XMCD) and the field dependences of XMCD near the K edge of Mn and the L2,3 edges of Pr in the Pr0.8Sr0.2MnO3 and Pr0.6Sr0.4MnO3 films at T = 90 K are studied. The spectral dependences point to a mixed valence state of Mn and Pr in the films. It is found that, as compared to XANES, XMCD is more sensitive to the valence state of Pr4+. The field dependences of XMCD point to ferromagnetic behavior of Mn ions and the Van Vleck paramagnetism of Pr ions, which makes a significant contribution to the total magnetization of the films. It is shown that as the Sr concentration increases, the XMCD intensity at the K edge of Mn increases, which indicates a growth of the total magnetic moment of the film due to an increase in the 4p–3d hybridization.

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Authors and Affiliations

  1. Kirensky Institute of Physics, Federal Research Center “Krasnoyarsk Scientific Center,” Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russia

    Yu. E. Samoshkina

  2. European Synchrotron Radiation Facility, Grenoble, CS, 40220 38043, France

    A. Rogalev

Authors
  1. Yu. E. Samoshkina
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  2. A. Rogalev
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Correspondence to Yu. E. Samoshkina.

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Original Russian Text © Yu.E. Samoshkina, A. Rogalev, 2018, published in Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2018, Vol. 153, No. 5, pp. 794–799.

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Samoshkina, Y.E., Rogalev, A. Electronic and Magnetic States of Pr and Mn in the Pr1–xSrxMnO3 Films Studied by XANES and XMCD Spectroscopy. J. Exp. Theor. Phys. 126, 660–665 (2018). https://doi.org/10.1134/S1063776118040131

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  • DOI: https://doi.org/10.1134/S1063776118040131

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