Electronic and Magnetic Structures of Sr2FeMoO6
arXiv:cond-mat/0107068 · doi:10.1103/PhysRevLett.87.097204
Abstract
We have investigated the electronic and magnetic structures of Sr2FeMoO6 employing site-specific direct probes, namely x-ray absorption spectroscopy with linearly and circularly polarized photons. In contrast to some previous suggestions, the results clearly establish that Fe is in the formal trivalent state in this compound. With the help of circularly polarized light, it is unambiguously shown that the moment at the Mo sites is below the limit of detection (< 0.25mu_B), resolving a previous controversy. We also show that the decrease of the observed moment in magnetization measurements from the theoretically expected value is driven by the presence of mis-site disorder between Fe and Mo sites.
To appear in Physical Review Letters
References in corpus (1)
Cited by in corpus (12)
- Near room-temperature colossal magnetodielectricity and multiglass properties in partially-disordered La2NiMnO6
- Evidence of strong antiferromagnetic coupling between localized and itinerant electrons in ferromagnetic Sr2FeMoO6
- Effect of band-filling and structural distortions on the Curie temperature of Fe-Mo double perovkites
- Tuning of dielectric properties and magnetism of SrTiO3 by site-specific doping of Mn
- Bulk-sensitive photoemission spectroscopy of A_2FeMoO_6 double perovskites (A=Sr, Ba)
- Curie temperature enhancement of electron doped SrFeMoO perovskites studied by photoemission spectroscopy
- Mean field theory for double-perovskites
- Ferrimagnetism, Antiferromagnetism and Magnetic Frustration in LaSrCuRuO (0 <= x <= 1)
- Dynamical Mean Field Theory of Double Perovskite Ferrimagnets
- Origin of Ferromagnetism and its pressure and doping dependence in TlMnO
- Microscopic model, spin wave theory and competing orders in the double perovskites
- Electronic structure of Fe and magnetism in the double perovskites CaFeReO and BaFeReO