Dynamical Mean Field Study of Model Double-Exchange Superlattices

Details Dynamical Mean Field Study of Model Double-Exchange Superlattices Dynamical Mean Field Study of Model Double-Exchange Superlattices

2005-12-02

arxiv.org/abs/cond-mat/0512061v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, f figures

Scientific paper

10.1103/PhysRevB.73.041104

A theoretical study of [001] "double exchange" superlattices is presented. The superlattice is defined in terms of an $AB$O$_3$ perovskite crystal. Itinerant electrons hop among the B sites according to a nearest-neighbor tight binding model and are coupled to classical "core spins". The $A$ sites contain ionic charges arranged to form an [001] superlattice which forces a spatial variation of the mobile electron charge on the $B$ sites. The double-exchange interaction is treated by the dynamical mean field approximation, while the long range Coulomb interaction is taken into account by the Hartree approximation. We find the crucial parameter is the Coulomb screening length. Different types of phases are distinguished and the interfaces between them classified.

Affiliated with

Also associated with

No associations

Rating

Dynamical Mean Field Study of Model Double-Exchange Superlattices 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 Dynamical Mean Field Study of Model Double-Exchange Superlattices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamical Mean Field Study of Model Double-Exchange Superlattices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-113408