Magnetic and 151Eu Mössbauer spectroscopic studies on rare earth bismuth sulfides, EuLnBiS4 (Ln = Eu, Gd)

Magnetic and 151Eu Mössbauer spectroscopic studies on rare earth bismuth sulfides, EuLnBiS4 (Ln... Ternary and quaternary rare earth bismuth sulfides EuLnBiS4 (Ln = Eu, Gd) have been investigated by X-ray diffraction, 151Eu Mössbauer spectroscopy, and magnetic susceptibility measurements. Both compounds have the orthorhombic CaFe2O4-type structure with space group Pnma. In Eu2BiS4, Eu2+ and Eu3+ ions occupy two crystallographically independent sites. The 151Eu Mössbauer spectra for Eu2BiS4 indicate that the Eu2+ and Eu3+ ions exist in the molar ratio of 1:1, and the Debye temperatures of Eu2+ and Eu3+ are 175 and 230 K, respectively. Magnetic susceptibility measurements for Eu2BiS4 and EuGdBiS4 reveal that an antiferromagnetic transition occurs at 2.8 and 6.5 K, respectively. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Solid State Chemistry Elsevier

Magnetic and 151Eu Mössbauer spectroscopic studies on rare earth bismuth sulfides, EuLnBiS4 (Ln = Eu, Gd)

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Publisher
Elsevier
Copyright
Copyright © 2018 Elsevier Inc.
ISSN
0022-4596
eISSN
1095-726X
D.O.I.
10.1016/j.jssc.2018.05.006
Publisher site
See Article on Publisher Site

Abstract

Ternary and quaternary rare earth bismuth sulfides EuLnBiS4 (Ln = Eu, Gd) have been investigated by X-ray diffraction, 151Eu Mössbauer spectroscopy, and magnetic susceptibility measurements. Both compounds have the orthorhombic CaFe2O4-type structure with space group Pnma. In Eu2BiS4, Eu2+ and Eu3+ ions occupy two crystallographically independent sites. The 151Eu Mössbauer spectra for Eu2BiS4 indicate that the Eu2+ and Eu3+ ions exist in the molar ratio of 1:1, and the Debye temperatures of Eu2+ and Eu3+ are 175 and 230 K, respectively. Magnetic susceptibility measurements for Eu2BiS4 and EuGdBiS4 reveal that an antiferromagnetic transition occurs at 2.8 and 6.5 K, respectively.

Journal

Journal of Solid State ChemistryElsevier

Published: Aug 1, 2018

References

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