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High-Resolution Spectroscopy of Low-Temperature Phase Transitions in Copper Metaborate CuB2O4

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Abstract

The linear magnetic dichroism in the crystallographically isotropic ab plane of a tetragonal CuB2O4 single crystal has been investigated by high-resolution Fourier spectroscopy at temperatures of 1.4–22 K. Magnetic phase transitions are found at T < 2.0 K and their nature is discussed.

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ACKNOWLEDGMENTS

This study was performed on the Unique Scientific System Multifunctional High-Resolution Wide-Range Spectroscopy at the Institute of Spectroscopy, Russian Academy of Sciences [27].

Funding

This study was supported by the Russian Foundation for Basic Research (project no. 18-32-00763 mol_a) and grant MK-216.2019.2 of the President of the Russian Federation.

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Authors and Affiliations

  1. Institute of Spectroscopy, Russian Academy of Sciences, 108840, Moscow, Troitsk, Russia

    A. D. Molchanova & K. N. Boldyrev

  2. National Research University Higher School of Economics, 101000, Moscow, Russia

    K. N. Boldyrev

Authors
  1. A. D. Molchanova
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  2. K. N. Boldyrev
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Correspondence to K. N. Boldyrev.

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The authors declare that they have no conflict of interest.

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Translated by A. Sin’kov

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Molchanova, A.D., Boldyrev, K.N. High-Resolution Spectroscopy of Low-Temperature Phase Transitions in Copper Metaborate CuB2O4. Opt. Spectrosc. 127, 33–35 (2019). https://doi.org/10.1134/S0030400X19070191

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