On the metallic conductivity of the delafossites PdCoO2 and PtCoO2

Details On the metallic conductivity of the delafossites PdCoO2 and PtCoO2 On the metallic conductivity of the delafossites PdCoO2 and PtCoO2

2008-01-26

arxiv.org/abs/0801.4077v1

Chem. Mater. 20, 2370-2373 (2008)

Physics

Condensed Matter

Materials Science

5 pages, 7 figures, more information at http://www.physik.uni-augsburg.de/~eyert/

Scientific paper

10.1021/cm703404e

The origin of the quasi two-dimensional behavior of PdCoO2 and PtCoO2 is investigated by means of electronic structure calculations. They are performed using density functional theory in the generalized gradient approximation as well as the new full-potential augmented spherical wave method. We show that the electric conductivity is carried almost exclusively by the in-plane Pd (Pt) d orbitals. In contrast, the insulating CoO2 sandwich layers of octahedrally coordinated Co atoms may be regarded as charge carrier reservoirs. This leads to a weak electronic coupling of the Pd (Pt) layers. The obtained nearly cylindrical Fermi surface causes the strong anisotropy of the electric conductivity.

Affiliated with

Also associated with

No associations

Rating

On the metallic conductivity of the delafossites PdCoO2 and PtCoO2 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with On the metallic conductivity of the delafossites PdCoO2 and PtCoO2, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the metallic conductivity of the delafossites PdCoO2 and PtCoO2 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-111785