Abstract
A first principles study of La2-2xSr1+2xMn2O7 compounds for doping levels 0.3≤x≤0.5 shows that the low energy electronic structure of the majority spin carriers is determined by strong momentum-dependent interactions between the Mn eg dx2-y2 and d3z2-r2 orbitals, which, in addition to an x-dependent Jahn-Teller distortion, differ in the ferromagnetic and antiferromagnetic phases. The Fermi surface exhibits nesting behavior that is reflected by peaks in the static susceptibility, whose positions as a function of momentum have a nontrivial dependence on x.
| Original language | English |
|---|---|
| Article number | 236402 |
| Journal | Physical review letters |
| Volume | 101 |
| Issue number | 23 |
| DOIs | |
| Publication status | Published - Dec 3 2008 |
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Saniz, R., Norman, M. R., & Freeman, A. J. (2008). Orbital mixing and nesting in the bilayer manganites La2-2xSr1+2xMn2O7. Physical review letters, 101(23), [236402]. https://doi.org/10.1103/PhysRevLett.101.236402