Magnetic ordering in the static intermediate-valent cerium compound Ce2RuZn4

Details Magnetic ordering in the static intermediate-valent cerium compound Ce2RuZn4 Magnetic ordering in the static intermediate-valent cerium compound Ce2RuZn4

2008-08-21

arxiv.org/abs/0808.2916v1

Phys. Rev. B 78, 214420 (2008)

Physics

Condensed Matter

Strongly Correlated Electrons

6 pages, 9 figures, more information at http://www.physik.uni-augsburg.de/~eyert/

Scientific paper

10.1103/PhysRevB.78.214420

The low-temperature behavior of Ce2RuZn4 has been investigated. Specific heat and magnetic susceptibility data reveal an antiferromagnetic transition at a Neel temperature of 2 K. Ce2RuZn4 is a static intermediate-valent compound with two crystallographically independent cerium atoms. The magnetic data clearly show that only one cerium site is magnetic (Ce^3+), while the second one carries no magnetic moment. The experimental data are interpreted with the help of first principles electronic structure calculations using density functional theory and the augmented spherical wave method. The calculations reveal the occurrence of two different cerium sites, which are characterized by strongly localized magneticmoments and strong Ce-Ru bonding, respectively.

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