The ESR Study of Eu Ternary Pnictides EuCd2Sb2, EuZn2As2

The magnetic properties of the Zintl compounds EuZn2As2 and EuCd2Sb2 have been studied. The measurements of resistance, magnetic susceptibility and the ESR (X band) was performed in the range 4 − 300 K. The symmetric Eu2+ ESR lines had the g-factors 2.00 (EuZn2As2), 2.03 (EuCd2Sb2) and a Lorentzian...

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Bibliographic Details
Published in:Journal of physics. Conference series 2012-12, Vol.391 (1)
Main Authors: Goryunov, Yu, Fritsch, V, Löhneysen, H v, Nateprov, A
Format: Article
Language:English
Subjects:
Antiferromagnetism
Group 5A compounds
Magnetic permeability
Magnetic properties
Magnetic variations
Physics
Superhigh frequencies
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Summary:The magnetic properties of the Zintl compounds EuZn2As2 and EuCd2Sb2 have been studied. The measurements of resistance, magnetic susceptibility and the ESR (X band) was performed in the range 4 − 300 K. The symmetric Eu2+ ESR lines had the g-factors 2.00 (EuZn2As2), 2.03 (EuCd2Sb2) and a Lorentzian shape above 120 K. The change of shape to Gaussian indicates on the magnetic fluctuations. EuZn2As2 and EuCd2Sb2 order antiferromagnetically with the TN 16.5 and 7.4 K, respectively; but with positive Curie-Weiss temperatures. The study revealed metallic conductivity for EuCd2Sb2 and semiconductor type for EuZn2As2.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/391/1/012015