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26 April 2024

» arxiv » 1411.2813

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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 ;
Date:	11 Nov 2014
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.
Source:	arXiv, 1411.2813
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