Long-range magnetic ordering in magnetic ionic liquid: Emim[FeCl4].
J Phys Condens Matter
; 22(29): 296006, 2010 Jul 28.
Article
in En
| MEDLINE
| ID: mdl-21399323
ABSTRACT
Up to now most of the magnetic ionic liquids containing tetrachloroferrate ion FeCl(4) 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[FeCl(4)], that clearly shows a long-range antiferromagnetic ordering below the Néel temperature T(N)≈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 µ(B)/Fe, which is near the expected fully saturated value of 5 µ(B)/Fe for an Fe(3+) ion.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
J Phys Condens Matter
Journal subject:
BIOFISICA
Year:
2010
Document type:
Article
Affiliation country: