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 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Orbital mixing and nesting in the bilayer manganites La2-2xSr1+2xMn2O7. / Saniz, R.; Norman, M. R.; Freeman, Arthur J.
In: Physical Review Letters, Vol. 101, No. 23, 236402, 03.12.2008.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Orbital mixing and nesting in the bilayer manganites La2-2xSr1+2xMn2O7
AU - Saniz, R.
AU - Norman, M. R.
AU - Freeman, Arthur J
PY - 2008/12/3
Y1 - 2008/12/3
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevLett.101.236402
DO - 10.1103/PhysRevLett.101.236402
M3 - Article
VL - 101
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 23
M1 - 236402
ER -