Surface electronic Structure and magnetic properties of doped manganites

Abstract

The electronic structure and magnetic properties of La_{1-x}A_{x}MnO_3 are investigated. It is assumed that, at the outermost layer, the environment of the Mn ions does not have cubic symmetry. The e_g orbitals are split and the double exchange mechanism is weakened. The charge state of the Mn ions is modified, and the magnetic ordering of the spins tends to be antiferromagnetic. The surface magnetization and the dependence of the transport properties through the resulting surface barrier on applied magnetic field and temperature is analyzed.

4 pages, 5 figures

References in corpus (9)

• Thickness dependent magnetotransport in ultra-thin manganite films
• Double-exchange via degenerate orbitals
• Spin flip scattering in magnetic junctions
• Temperature- and Bias-dependence of magnetoresistance in doped manganite thin film trilayer junctions
• Joint superexchange--Jahn-Teller mechanism for A-type antiferromagnetism in $LaMn{O}_3$
• Monte Carlo Simulations for the Magnetic Phase Diagram of the Double Exchange Hamiltonian
• Interplay of charge and orbital ordering in manganese perovskites
• Conductance as a Function of the Temperature in the Double Exchange Model
• Localization length in a random magnetic field

Cited by in corpus (27)

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• Evidence of orbital reconstruction at interfaces in La0.67Sr0.33MnO3 films
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• Spin-polarized tunneling spectroscopy in tunnel junctions with half-metallic electrodes
• Enhanced grain surface effect on magnetic properties of nanometric La0.7Ca0.3MnO3 manganite : Evidence of surface spin freezing of manganite nanoparticles
• Electronic Phase Separation in Manganite/Insulator Interfaces
• Electronic and magnetic properties of the (001) surface of hole-doped manganites
• Insulating phase at low temperature in ultrathin La0.8Sr0.2MnO3 films
• Effect of strain on the orbital and magnetic ordering of manganite thin films and their interface with an insulator
• Highly anisotropic resistivities in the double-exchange model for strained manganites
• Magnetoresistance in an all-manganite heterostructure
• Appearance and disappearance of ferromagnetism in ultra-thin LaMnO${}_3$ on SrTiO${}_3$ substrate: a viewpoint from first-principles
• Measuring magnetic profiles at manganite surfaces with monolayer resolution
• Surface Magnetic Phase Diagram of Tetragonal Manganites
• Magnetic Domain Structure of La0.7Sr0.3MnO3 thin-films probed at variable temperature with Scanning Electron Microscopy with Polarization Analysis
• The magnetotransport properties of La0.7Sr0.3MnO3/BaTiO3 superlattices grown by pulsed laser deposition technique
• Realization of biferroic properties in La0.6Sr0.4MnO3 0.7Pb(Mg0.33Nb0.67)O3 0.3(PbTiO3) epitaxial superlattices
• Spin-orbit effects surfacing on manganites
• Surface structures of the magnetostrictive D03-Fe3Ga(001)
• Persistent metal-insulator transition at the surface of an oxygen-deficient, epitaxial manganite film
• Energy Landscape analysis of metal-insulator transitions: theory and application to Ca${}_2$RuO${}_4$, $R$NiO${}_3$ and their heterostructures
• Site-selective polar compensation of Mott electrons in a double perovskite heterointerface
• Interfacial reconstruction effects in insulating double perovskite Nd${}_2$NiMnO${}_6$/SrTiO${}_3$ and Nd${}_2$NiMnO${}_6$/NdGaO${}_3$ thin films
• Intrinsic tunneling in phase separated manganites
• Surface magnetic phase transition of the double-exchange ferromagnet: Schwinger-boson mean-field study
• Electronic reconstruction in correlated electron heterostructures