Orbital mixing and nesting in the bilayer manganites La{sub 2-2x}Sr{sub 1+2x}Mn{sub 2}O{sub 7}.
Journal Article
·
· Phys. Rev. Lett.
A first principles study of La{sub 2-2x}Sr{sub 1+2x}Mn{sub 2}O{sub 7} compounds for doping levels 0.3 {le} x {le} 0.5 shows that the low energy electronic structure of the majority spin carriers is determined by strong momentum-dependent interactions between the Mn e{sub g} d{sub x{sup 2}-y{sup 2}} and d{sub 3z{sup 2}-r{sup 2}} 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.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 944036
- Report Number(s):
- ANL/MSD/JA-62263
- Journal Information:
- Phys. Rev. Lett., Journal Name: Phys. Rev. Lett. Journal Issue: 2008 Vol. 101; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- ENGLISH
Similar Records
Study of the e{sub g} Orbitals in the Bilayer Manganite La{sub 2{minus}2x}Sr{sub 1+2x}Mn{sub 2}O{sub 7} by Using Magnetic Compton-Profile Measurement
{sup 55}Mn nuclear magnetic resonance study of highly Sr-doped La{sub 2-2x}Sr{sub 1+2x}Mn{sub 2}O{sub 7} (x = 0.5-0.8).
Electronic structure of the metallic ground state of La{sub 2-2x}Sr{sub 1+2x}Mn{sub 2}O{sub 7} for x{approx} 0.59 and comparison with x=0.36, 0.38 compounds as revealed by angle-resolved photoemission.
Journal Article
·
Mon Jun 11 00:00:00 EDT 2001
· Physical Review Letters
·
OSTI ID:40204644
{sup 55}Mn nuclear magnetic resonance study of highly Sr-doped La{sub 2-2x}Sr{sub 1+2x}Mn{sub 2}O{sub 7} (x = 0.5-0.8).
Journal Article
·
Mon Dec 31 23:00:00 EST 2007
· Phys. Rev. B
·
OSTI ID:944528
Electronic structure of the metallic ground state of La{sub 2-2x}Sr{sub 1+2x}Mn{sub 2}O{sub 7} for x{approx} 0.59 and comparison with x=0.36, 0.38 compounds as revealed by angle-resolved photoemission.
Journal Article
·
Mon Dec 31 23:00:00 EST 2007
· Phys. Rev. B
·
OSTI ID:936725