Electrical resistivity and specific heat of single-crystalline EuFe2As2:: A magnetic homologue of SrFe2As2

被引：157

作者：

Jeevan, H. S. ^{[1
]}

Hossain, Z. ^{[2
]}

Kasinathan, Deepa ^{[3
]}

Rosner, H. ^{[3
]}

Geibel, C. ^{[3
]}

Gegenwart, P. ^{[1
]}

机构：

[1] Univ Gottingen, Inst Phys, D-37077 Gottingen, Germany

[2] Indian Inst Technol, Dept Phys, Kanpur 208016, Uttar Pradesh, India

[3] Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany

来源：

PHYSICAL REVIEW B | 2008年 / 78卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.78.052502

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页数：4

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