Theory of Manganite Superlattice

Abstract

A theoretical model is proposed for the (0,0,1) superlattice manganite system (LaMnO${}_3$)${}_n$(SrMnO${}_3$)${}_m$. The model includes the electron-electron, electron-phonon, and cooperative Jahn-Teller interactions. It is solved using a version of single-site the dynamical mean field approximation generalized to incorporate the cooperative Jahn-Teller effect. The phase diagram and conductivities are calculated. The behavior of the superlattice is found to a good approximation to be an average over the density-dependent properties of individual layers, with the density of each layer fixed by electrostatics.

9 figures, 22 pages

References in corpus (13)

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• The metal-insulator transition and its relation to magnetic structure in (LaMnO3)2n/(SrMnO3)n superlattices
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• Spatial inhomogeneity and strong correlation physics: a dynamical mean field study of a model Mott-insulator/band-insulator heterostructure
• Effects of uniaxial strain in LaMnO_3
• Dynamical Mean Field Study of Model Double-Exchange Superlattices
• Structural distortions and model Hamiltonian parameters: from LSDA to a tight-binding description of LaMnO_3
• Dynamical mean field theory for transition temperature and optics of CMR manganites
• Benchmarking a semiclassical impurity solver for dynamical-mean-field theory: self-energies and magnetic transitions of the single-orbital Hubbard model

Cited by in corpus (12)

• Quantum many-body interactions in digital oxide superlattices
• Metal-insulator transition in $(LaMn{O}_3{)}_{2n}/(SrMn{O}_3{)}_n$ superlattices
• Evolution of magnetic phases and orbital occupation in (SrMnO3)n/(LaMnO3)2n superlattices
• Effect of strain on the orbital and magnetic ordering of manganite thin films and their interface with an insulator
• Electronic and Magnetic Properties of ${\mathrm{RMnO}}_3/{\mathrm{AMnO}}_3$ Heterostructures
• Optical Properties of (SrMnO3)n/(LaMnO3)2n superlattices: an insulator-to-metal transition observed in the absence of disorder
• Electronic and Magnetic Reconstructions in Manganite Superlattices
• Giant magnetoelectric effect in pure manganite-manganite heterostructures
• An electric-field driven Mott metal-insulator transition in correlated thin films: an inhomogeneous dynamical mean-field theory approach
• Epitaxial strain effects on magnetic ordering and spin-phonon couplings in the (SrMnO${}_3$)${}_1$/(LaMnO${}_3$)${}_1$ superlattice from first principles
• Electron-lattice and strain effects in manganite heterostructures: the case of a single interface
• Geometric tuning of charge and spin correlations in manganite superlattices