Role of the superexchange interaction in magnetic transition and polaron crossover

Details Role of the superexchange interaction in magnetic transition and polaron crossover Role of the superexchange interaction in magnetic transition and polaron crossover

2003-12-03

arxiv.org/abs/cond-mat/0312088v1

Physics

Condensed Matter

5 pages (RevTeX), accepted in Physica B

Scientific paper

10.1016/j.physb.2003.11.075

The Hubbard-Holstein model is studied including double-exchange interaction and superexchange interaction using a variational phonon basis obtained through the modified Lang-Firsov (MLF) transformation followed by the squeezing transformation. The kinetic energy, polaron crossover and magnetic transition are investigated as a function of electron-phonon ($e$-ph) coupling and electron concentration for different values of antiferromagnetic superexchange interaction ($J$) between the core spins. The polaron crossover, magnetic transition and the suppression of ferromagnetic transition with $J $ are discussed for the model.

Affiliated with

Also associated with

No associations

Rating

Role of the superexchange interaction in magnetic transition and polaron crossover 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 Role of the superexchange interaction in magnetic transition and polaron crossover, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Role of the superexchange interaction in magnetic transition and polaron crossover will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-187639