2008/06/24 by H. S. Jeevan, Z. Hossain, Deepa Kasinathan +4 · 8 citations
Materials Science · Physics and Astronomy · #Condensed matter physics #Electrical resistivity and conductivity #Iron-based superconductors research #Magnetic moment #Materials science #Moment (physics) #Order (exchange) #Phase (matter) #Phase transition #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Rare-earth and actinide compounds #Specific heat #Thermodynamics #cond-mat.other #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.78.052502
published as Phys. Rev. B 78, 052502 (2008)
arxiv created 2008/06/24 · openalex publication_date 2008/08/05 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We have grown single crystals of EuFe2As2, 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 SrFe2As2. Magnetically, the Eu and Fe2As2 sublattices are nearly decoupled.