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Synthesis and magnetic properties of Cu3B2O6 single crystals

  • Magnetism and Ferroelectricity
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Abstract

The temperature dependence of the magnetic susceptibility of Cu3B2O6 single crystals grown by spontaneous crystallization from a melt consisting of a mixture of CuO and B2O3 and the behavior of their magnetization are investigated in magnetic fields up to 55 kOe. A broad susceptibility maximum is observed near 39 K, and a sharp drop in susceptibility is observed at T<10 K. The paramagnetic Néel temperatures for all orientations of the magnetic field in the crystal investigated are negative, attesting to the predominantly antiferromagnetic character of the exchange interactions. The effective magnetic moment of the Cu2+ ion is anisotropic and lies in the range from 1.054μ B to 1.545μ B. The magnetization depends linearly on magnetic field at T>10 K, whereas at temperatures below 10 K a discontinuity is observed at fields of the order of 40 kOe. At room temperature, electron magnetic resonance characterized by an almost isotropic g factor (g=2.165) is detected at 36.22 GHz. The exchange interactions in Cu3B2O6 are analyzed on the basis of the Goodenough-Kanamori rules. The possibility of the establishment of a singlet magnetic state in the crystal is analyzed.

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Authors and Affiliations

  1. L. V. Kirenskii Institute of Physics, Russian Academy of Sciences, Siberian Branch, 660036, Krasnoyarsk, Russia

    G. A. Petrakovskii, K. A. Sablina, A. M. Vorotynov, O. A. Bayukov, A. F. Bovina & G. V. Bondarenko

  2. Institute of Physics, Polish Academy of Sciences, 02-668, Warsaw, Poland

    R. Szymczak, M. Baran & H. Szymczak

Authors
  1. G. A. Petrakovskii
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  2. K. A. Sablina
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  3. A. M. Vorotynov
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  4. O. A. Bayukov
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  5. A. F. Bovina
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  6. G. V. Bondarenko
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  7. R. Szymczak
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  8. M. Baran
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  9. H. Szymczak
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Additional information

Fiz. Tverd. Tela (St. Petersburg) 41, 677–679 (April 1999)

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Petrakovskii, G.A., Sablina, K.A., Vorotynov, A.M. et al. Synthesis and magnetic properties of Cu3B2O6 single crystals. Phys. Solid State 41, 610–612 (1999). https://doi.org/10.1134/1.1130835

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  • DOI: https://doi.org/10.1134/1.1130835

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