On the Theory of Magnets with Competing Double Exchange and Superexchange Interactions

Details On the Theory of Magnets with Competing Double Exchange and Superexchange Interactions On the Theory of Magnets with Competing Double Exchange and Superexchange Interactions

1998-05-19

arxiv.org/abs/cond-mat/9805238v3

Phys. Rev. B, vol.58, pp. 8617-8626 (1998)

Physics

Condensed Matter

This is a long version of an earlier paper, cond-mat/9712094. 10 pages, Latex-Revtex, 8 PostScript figures. Minor revisions, r

Scientific paper

10.1103/PhysRevB.58.8617

In the CMR materials, ferromagnetic double exchange (DE) presumably coexists with a direct nearest-neighbour antiferromagnetic interaction. We construct a single-site mean field theory that explicitly takes into account the different nature of carrier-mediated ferromagnetism vs. Heisenberg-like superexchange. We find, in contrast to previous results in the literature, that the competition between these two exchange interactions leads to ferro- or antiferromagnetic order with incomplete saturation of the magnetization (or sublattice magnetization), rather than spin canting. The associated experimental implications are discussed.

Affiliated with

Also associated with

No associations

Rating

On the Theory of Magnets with Competing Double Exchange and Superexchange Interactions 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 Theory of Magnets with Competing Double Exchange and Superexchange Interactions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the Theory of Magnets with Competing Double Exchange and Superexchange Interactions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-317135