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Long-range magnetic ordering in magnetic ionic liquid: Emim[FeCl4]

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=3.8 K. In addition, the field dependence of the magnetization measured at 2 K is characterized by a linear behaviour up to around 40 kOe, while above this field the magnetization becomes saturated with a value of 4.3 ?B/Fe, which is near the expected fully saturated value of 5 uB/Fe for an Fe3 + ion.

 Autoría: De Pedro I., Rojas D., Albo J., Luis P., Irabien A., Blanco J., Rodríguez Fernández J.,

 Fuente: Journal of Physics Condensed Matter, 2010, 22(29), 296006

 Editorial: Institute of Physics

 Fecha de publicación: 01/07/2010

 Nº de páginas: 4

 Tipo de publicación: Artículo de Revista

 DOI: 10.1088/0953-8984/22/29/296006

 ISSN: 0953-8984,1361-648X

 Proyecto español: MAT2008-06542-C04-04

 Url de la publicación: https://doi.org/10.1088/0953-8984/22/29/296006

Autoría

DANIEL ROJAS PUPO

PATRICIA LUIS ALCONERO

BLANCO RODRÍGUEZ, JESÚS ÁNGEL