Long-range magnetic ordering in magnetic ionic liquid: Emim[FeCl 4]
(2010) Journal of Physics: Condensed Matter — Vol. 22, n° 29 (2010)
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- Abstract
- Up to now most of the magnetic ionic liquids containing tetrachloroferrate ion FeCl4 have evidenced a paramagnetic temperature dependence of the magnetic susceptibility, with only small deviations from the Curie law at low temperatures. However, we report on the physical properties of 1-ethyl-3-methylimidazolium tetrachloroferrate Emim[FeCl4], that clearly shows a long-range antiferromagnetic ordering below the Néel temperature TN≈3.8K. In addition, the field dependence of the magnetization measured at 2K is characterized by a linear behaviour up to around 40kOe, while above this field the magnetization becomes saturated with a value of 4.3 μB/Fe, which is near the expected fully saturated value of 5 μBs/Fe for an Fe3 + ion.
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De Pedro, I., Rojas, D. P., Albo, J., Luis Alconero, P., Irabien, A., Blanco, J. A., & Rodríguez Fernández, J. (2010). Long-range magnetic ordering in magnetic ionic liquid: Emim[FeCl 4]. Journal of Physics: Condensed Matter, 22(29). https://doi.org/10.1088/0953-8984/22/29/296006 (Original work published 2010)