Journal
PHYSICAL REVIEW B
Volume 69, Issue 16, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.69.165111
Keywords
-
Ask authors/readers for more resources
With a treatment of the 4f states of EuB6 based on LDA+U (LDA-local-density approximation) method, the mixing of Eu f states with B p states around the X point of the Brillouin zone is shown to have unexpected consequences for the effective exchange interactions. We analyze in detail the orbital character of electronic states close to the Fermi level and discuss the effective exchange between the itinerant electrons and the local 4f moments. The analysis suggests that the ordered phase may provide the first example of a half-metallic semimetal, and that the physics of EuB6 should be described in terms of a two-band Kondo lattice model with parallel (ferromagnetic) coupling of the conduction electrons and antiparallel (antiferromagnetic) coupling of the valence electrons to the local 4f moments.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available