Abstract
We have grown single crystals of , and investigated its electrical transport and thermodynamic properties. Electrical resistivity and specific-heat measurements clearly establish the intrinsic nature of magnetic phase transitions at 20 and 195 K. While the high-temperature phase transition is associated with the itinerant moment of Fe, the low-temperature phase transition is due to magnetic order of localized Eu moments. Band-structure calculations point out a very close similarity of the electronic structure with . Magnetically, the Eu and sublattices are nearly decoupled.
- Received 24 June 2008
DOI:https://doi.org/10.1103/PhysRevB.78.052502
©2008 American Physical Society