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arXiv · 1411.2813

Temperature dependence of electronic and magnetic properties of (DOEO)$_4$[HgBr$_4$]TCE single crystals

Alisa Chernenkaya·Aleksandr Kotov·Oksana Koplak·Katerina Medjanik·Roman Morgunov·Eduard Yagubskii·Hans-Joachim Elmers·Gerd Schönhense
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Abstract

The temperature dependence of electronic and magnetic properties of the organic charge-transfer salt (DOEO)$_4$[HgBr$_4$]TCE was investigated using magnetometry. Electronic transport properties revealed three distinct phases which are related to different magnetic coupling phenomena. In the low-temperature insulating phase (T<70 K) the antiferromagnetic coupling between two distinct sites of magnetic moments causes antiferromagnetic order below the N\'eel temperature T$_N$=40 K. In the temperature region 70-120 K the (DOEO)$_4$[HgBr$_4$]TCE shows metallic-like behavior and with further increasing of temperature it becomes a bad metal due to loss of itinerant character and increase of hopping conductivity of charge carriers.

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Alisa Chernenkaya, Aleksandr Kotov, Oksana Koplak, Katerina Medjanik, Roman Morgunov, Eduard Yagubskii, Hans-Joachim Elmers, Gerd Schönhense. 2014-11-11. Temperature dependence of electronic and magnetic properties of (DOEO)$_4$[HgBr$_4$]TCE single crystals. https://arxiv.org/abs/1411.2813

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