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Electrical Resistivity and Specific Heat of EuFe2As2 Single Crystals: Magnetic homologue of SrFe2As2

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arxiv 0806.2876 v2 pith:HDCL7OI6 submitted 2008-06-17 cond-mat.supr-con cond-mat.other

Electrical Resistivity and Specific Heat of EuFe2As2 Single Crystals: Magnetic homologue of SrFe2As2

H. S. Jeevan , Z. Hossain , Deepa Kasinathan , H. Rosner , C. Geibel , P. Gegenwart This is my paper
classification cond-mat.supr-con cond-mat.other
keywords electricalmagneticphasecrystalseufe2as2heatresistivitysingle
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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 K 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 sublattice are nearly de-coupled.

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