Highly anisotropic resistivities in the double-exchange model for strained manganites

Abstract

The highly anisotropic resistivities in strained manganites are theoretically studied using the two-orbital double-exchange model. At the nanoscale, the anisotropic double-exchange and Jahn-Teller distortions are found to be responsible for the robust anisotropic resistivities observed here via Monte Carlo simulations. An unbalanced in the population of orbitals caused by strain is responsible for these effects. In contrast, the anisotropic superexchange is found to be irrelevant to explain our results. Our model study suggests that highly anisotropic resistivities could be present in a wide range of strained manganites, even without (sub)micrometer-scale phase separation. In addition, our calculations also confirm the formation of anisotropic clusters in phase-separated manganites, which magnifies the anisotropic resistivities.

7 pages, 4 figures

References in corpus (28)

• Colossal Magnetoresistant Materials: The Key Role of Phase Separation
• Complexity in Strongly Correlated Electronic Systems
• Resistivity of Mixed-Phase Manganites
• Relevance of Cooperative Lattice Effects and Correlated Disorder in Phase-Separation Theories for CMR Manganites
• Competing Ferromagnetic and Charge-Ordered States in Models for Manganites: the Origin of the CMR Effect
• Surface electronic Structure and magnetic properties of doped manganites
• Ferromagnetic tendency at the surface of CE charge-ordered manganites
• Origin of the multiferroic spiral spin-order in the RMnO3 perovskites
• Surface phase separation in nanosized charge-ordered manganites
• Competing Orders and Disorder-induced Insulator to Metal Transition in Manganites
• Theoretical Study of Half-Doped Models for Manganites: Fragility of the CE Phase with Disorder, Two Types of Colossal Magnetoresistances, and Charge-Ordered States for Electron-Doped Materials
• Effect of strain and electric field on the electronic soft matter in manganite thin films
• Metal-insulator transition in $(LaMn{O}_3{)}_{2n}/(SrMn{O}_3{)}_n$ superlattices
• Effects of Strain on Orbital Ordering and Magnetism at the Perovskite Oxide Interfaces: LaMnO${}_3$/SrMnO${}_3$
• Computational implementation of the Kubo formula for the static conductance: application to two-dimensional quantum dots
• Insulator to Metal Transition Induced by Disorder in a Model for Manganites
• The Distinct Effects of Homogeneous Weak Disorder and Dilute Strong Scatterers on Phase Competetion in the Manganites
• Striped Multiferroic Phase in Double-Exchange Model for Quarter-Doped Manganites
• Colossal Magnetoresistance Observed in Monte Carlo Simulations of the One- and Two-Orbital Models for Manganites
• Singular Effect of Disorder on Electronic Transport in Strong Coupling Electron-Phonon Systems
• Magnetoresistance in an all-manganite heterostructure
• Dielectrophoresis model for the colossal electroresistance of phase-separated manganites
• Study of Short-distance Spin and Charge Correlations and Local Density-of-States in the CMR regime of the One-Orbital Model for Manganites
• Non-magnetic B-site Impurities Induce Ferromagnetic Tendencies in CE Manganites
• Surface Magnetic Phase Diagram of Tetragonal Manganites
• Electric Field Induced Collapse of Charge-Ordered Phase in Manganites
• Inhomogeneous Ferromagnetism and Unconventional Charge Dynamics in Disordered Double Exchange Magnets
• Combined Effect of Bond- and Potential-Disorder in Half-Doped Manganites

Cited by in corpus (13)

• Recent Progress of Multiferroic Perovskite Manganites
• Strain Doping: Reversible Single-Axis Control of a Complex Oxide Lattice via Helium Implantation
• Single domain to multi-domain transition due to in-plane magnetic anisotropy in phase separated (La${}_{0.4}$Pr${}_{0.6}$)${}_{0.67}$Ca${}_{0.33}$MnO${}_3$ thin films
• Theory of Strain-Controlled Magnetotransport and Stabilization of the Ferromagnetic Insulating Phase in Manganite Thin Films
• Effect of strain on the orbital and magnetic ordering of manganite thin films and their interface with an insulator
• Dynamics of a first order electronic phase transition in manganites
• Helical and skyrmion lattice phases in three-dimensional chiral magnets: Effect of anisotropic interactions
• Structural reconstruction and anisotropic conductance in $4f$-ferromagnetic monolayer
• Electron-lattice and strain effects in manganite heterostructures: the case of a single interface
• Dynamic percolation of ferromagnetic regions in phase separated manganites using non-uniform electric fields
• Multi-Fields Modulation of Physical Properties of Oxide Thin Films
• Persistent metal-insulator transition at the surface of an oxygen-deficient, epitaxial manganite film
• Strain Fields and Critical Phenomena in Manganites I: Spin-Lattice Hamiltonians