Magnetic properties of layered EuOCl and EuOBr materials: investigations and mathematical simulation

Authors

  • В. В. Бунда Transcarpathian State University, Ukraine
  • C. О. Бунда Transcarpathian State University, Ukraine
  • В. М. Сабадош Transcarpathian State University, Ukraine

DOI:

https://doi.org/10.24144/2415-8038.2008.22.57-59

Keywords:

Magnetic properties, Mathematical simulation, EuOCl, EuOBr

Abstract

The polycrystalline EuOCl and EuOBr samples were prepared by heating intimately ground mixtures of europium oxide, Eu2O3 and ammonium chloride, NH4Cl in static N2 atmosphere. The magnetic susceptibilities for Eu3+(Eu2+) ions in polycrystalline tetragonal europium oxychloride and oxybromide were measured in temperature region between 4,2 and 310 K. The susceptibilities of EuOCl and EuOBr follow the paramagnetic Curie–Weiss behavior down to low temperatures. The temperature dependence of the experimental paramagnetic susceptibility for EuOCl and EuOBr was simulated with the aid of the van Vleck formalism.

References

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G. Blasse, B.C. Grabmaier. Luminescent Materials. -Springer-Verlag. -Berlin 1994. - p. 78.

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T. Aitasalo, J. Hölsä, M. Lastusaari, J. Legendziewicz, L. Lehto, J. Lindén, M. Maryško, J. Alloys and Comp. 380. 296 (2004).

J.H. van Vleck. The Theory of Electric and Magnetic Susceptibilities. - Oxford University Press. -London, 1965. – 278 p.

J. Hölsä, P. Porcher, J. Chem. Phys. 75. 2108 (1981).

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Published

2008-06-30

Issue

Vol. 22 (2008)

Section

Статті

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Copyright (c) 2008 Scientific Herald of Uzhhorod University.Series Physics

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