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

被引：52

作者：

de Pedro, I. ^{[1
]}

Rojas, D. P. ^{[1
]}

Albo, J. ^{[2
]}

Luis, P. ^{[2
]}

Irabien, A. ^{[2
]}

Blanco, Jesus A. ^{[3
]}

Rodriguez Fernandez, J. ^{[1
]}

机构：

[1] Univ Cantabria, Fac Ciencias, CITIMAC, E-39005 Santander, Spain

[2] Univ Cantabria, Dept Quim Inorgan & Ingn Quim, E-39005 Santander, Spain

[3] Univ Oviedo, Dept Fis, E-33007 Oviedo, Spain

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2010年 / 22卷 / 29期

关键词：

FLUIDS;

D O I：

10.1088/0953-8984/22/29/296006

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 [凝聚态物理];

摘要：

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 Neel temperature T-N approximate to 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 mu(B)/Fe, which is near the expected fully saturated value of 5 mu(B)/Fe for an Fe3+ ion.

引用

页数：4

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