Electron correlation effects and magnetic ordering at the Gd(0001) surface

Details Electron correlation effects and magnetic ordering at the Gd(0001) surface Electron correlation effects and magnetic ordering at the Gd(0001) surface

1999-07-19

arxiv.org/abs/cond-mat/9907254v2

Physics

Condensed Matter

Strongly Correlated Electrons

revised version: minor typos corrected

Scientific paper

10.1103/PhysRevB.61.R9213

Effects of electron correlation on the electronic structure and magnetic properties of the Gd(0001) surface are investigated using of the full-potential linearized augmented plane wave implementation of correlated band theory ("LDA+U"). The use of LDA+U instead of LDA (local density approximation) total energy calculations produces the correct ferromagnetic ground state for both bulk Gd and the Gd surface. Surface strain relaxation leads to an 90 % enhancement of the interlayer surface-to-bulk effective exchange coupling. Application of a Landau-Ginzburg type theory yields a 30 % enhancement of the Curie temperature at the surface, in very good agreement with the experiment.

Affiliated with

Also associated with

No associations

Rating

Electron correlation effects and magnetic ordering at the Gd(0001) surface 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 Electron correlation effects and magnetic ordering at the Gd(0001) surface, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electron correlation effects and magnetic ordering at the Gd(0001) surface will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-438886