Paramagnetic Properties of Rare Earth Chromium Borates at High Temperatures

Issues » Volume 44, Issue 2

O. K. Kuvandikov $^{1}$ , Kh. O. Shakarov $^{1}$ , U. T. Usarov $^{2}$ , Z. M. Shodiev $^{1}$ , B. U. Amonov $^{1}$ , O. A. Sulaimonov $^{1}$

$^{1}$ Samarkand State University, 15 University Blvd., UZ-140104 Samarkand, Uzbekistan
$^{2}$ Samarkand State Architectural and Construction Institute, 70 Lolazor Str., UZ-140147 Samarkand, Uzbekistan

Received: 25.11.2020; final version - 05.11.2021. Download: PDF

Temperature dependence of the magnetic susceptibility $\chi$ ( $T$ ) is studied in compounds of GdCr $_3$ (BO $_3$ ) $_4$ and ErCr $_3$ (BO $_3$ ) $_4$ by the Faradey method in the wide temperature range (293–1200 K). The dependences $\chi^{-1}$ ( $T$ ) for all crystals show the nonlinear anomalies caused by structural transitions in the crystals. The $\chi^{-1}$ ( $T$ ) dependences for paramagnetic phase follow the linear Curie–Weiss law. The Curie’s temperature and values of magnetic moments corresponding to the chemical formula of the crystals are found.

Key words: exchange interaction, paramagnetic temperature, magnetic susceptibility, magnetic moment, law of Curie–Weiss, the rare earth borates.

URL: https://mfint.imp.kiev.ua/en/abstract/v44/i02/0151.html

DOI: https://doi.org/10.15407/mfint.44.02.0151

PACS: 61.50.Ks, 75.20.Ck, 75.30.Cr, 75.30.Et

Citation: O. K. Kuvandikov, Kh. O. Shakarov, U. T. Usarov, Z. M. Shodiev, B. U. Amonov, and O. A. Sulaimonov, Paramagnetic Properties of Rare Earth Chromium Borates at High Temperatures, Metallofiz. Noveishie Tekhnol., 44, No. 2: 151—157 (2022)

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