Phase diagram and influence of defects in the double perovskites

Abstract

The phase diagram of the double perovskites of the type Sr_{2-x} La_x Fe Mo O_6 is analyzed, with and without disorder due to antisites. In addition to an homogeneous half metallic ferrimagnetic phase in the absence of doping and disorder, we find antiferromagnetic phases at large dopings, and other ferrimagnetic phases with lower saturation magnetization, in the presence of disorder.

4 pages, 3 postscript figures, some errata corrected

References in corpus (15)

• Electronic Structure of Sr_2FeMoO_6
• Cationic ordering control of magnetization in Sr2FeMoO6 double perovskite
• Magnetoresistance in ordered and disordered double perovskite oxide, Sr${}_2$FeMoO${}_6$
• On the origin of neutron magnetic scattering in anti-site disordered Sr2FeMoO6 double perovskites
• Metallic and nonmetallic double perovskites: A case study of A${}_2$FeReO${}_6$ (A= Ca, Sr, Ba)
• Ab-initio study of disorder effects on the electronic and magnetic structures of Sr${}_2$FeMoO${}_6$
• Hybrid Monte Carlo algorithm for the Double Exchange Model
• Evidence of strong antiferromagnetic coupling between localized and itinerant electrons in ferromagnetic Sr2FeMoO6
• Theory of Transition Temperature of Magnetic Double Perovskites
• Monte Carlo determination of the phase diagram of the double-exchange model
• Variational Mean Field approach to the Double Exchange Model
• Discontinuous transitions in double exchange materials
• Phase separation and enhanced charge-spin coupling near magnetic transitions
• Metal-insulator transition in the double perovskites
• Effective three-band model for double perovskites

Cited by in corpus (16)

• Theory of Half-metallic Ferrimagnetism in Double Perovskites
• Theory of Half-Metallic Double Perovskites I: Double Exchange Mechanism
• Effect of band-filling and structural distortions on the Curie temperature of Fe-Mo double perovkites
• Origin of Magnetism and trend in $T_c$ in Cr-based double perovskites: Interplay of two driving mechanisms
• Curie temperature enhancement of electron doped Sr${}_2$FeMoO${}_6$ perovskites studied by photoemission spectroscopy
• Evidence of Kinetic Energy Driven Antiferromagnetism in Double Perovskites : A First-principles Study
• Theory of Half-Metallic Double Perovskites II: Effective Spin Hamiltonian and Disorder Effects
• Mean field theory for double-perovskites
• Antisite Domains in Double Perovskite Ferromagnets: Impact on Magnetotransport and Half-metallicity
• A Magnetic Model for the Ordered Double Perovskites
• Magnetism in Sr${}_2$CrMoO${}_6$: A combined abinitio and model study
• Understanding ferromagnetism in Cr-based 3d-5d double perovskites
• Theory of magnetism in La${}_2$NiMnO${}_6$
• Electronic self-doping of Mo-states in A2FeMoO6 (A=Ca, Sr and Ba) half-metallic ferromagnets - a Nuclear Magnetic Resonance study
• Orbital ordering and magnetic structures in $\LMFO$ and $\LWFO$ double perovskites
• Temperature-driven BCS-BEC crossover in a coupled boson-fermion system