Resistivity of Mixed-Phase Manganites

Abstract

The resistivity ${\rho }_{dc}$ of manganites is studied using a random-resistor-network, based on phase-separation between metallic and insulating domains. When percolation occurs, both as chemical composition and temperature vary, results in good agreement with experiments are obtained. Similar conclusions are reached using quantum calculations and microscopic considerations. Above the Curie temperature, it is argued that ferromagnetic clusters should exist in Mn-oxides. Small magnetic fields induce large ${\rho }_{dc}$ changes and a bad-metal state with (disconnected) insulating domains.

4 pages, 4 eps figures

References in corpus (8)

• Phase Separation in Electronic Models for Manganites
• Explanation of Giant Cluster Coexistence in Doped Manganites and Other Compounds
• Charge and orbital order in half-doped manganites
• Phase Separation Induced by Orbital Degrees of Freedom in Models for Manganites with Jahn-Teller Phonons
• Thermal/Electronic Transport Properties and Two-Phase Mixtures in La_{5/8-x}Pr_{x}Ca_{3/8}MnO_{3}
• Ferromagnetic, A-type, and Charge-Ordered CE-type States in Doped Manganites using Jahn-Teller Phonons
• Topological Scenario for Stripe Formation in Manganese Oxides
• Conductance as a Function of the Temperature in the Double Exchange Model

Cited by in corpus (56)

• Extrinsic Magnetotransport Phenomena in Ferromagnetic Oxides
• Colossal Effects in Transition Metal Oxides Caused by Intrinsic Inhomogeneities
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• Fermi Surface Nesting and Nanoscale Fluctuating Charge/Orbital Ordering in Colossal Magnetoresistive Oxides
• Intrinsic Inhomogeneities in Manganite Thin Films Investigated with Scanning Tunneling Spectroscopy
• Novel dynamical effects and persistent memory in phase separated manganites
• Determinative Role of the Jahn-Teller Disorder in the Raman Scattering of Mixed-Valence Manganites
• Nanoscale Phase Separation in Colossal Magnetoresistance Materials: A Lesson for the Cuprates?
• Unveiling New Magnetic Phases of Undoped and Doped Manganites
• Spectroscopic evidence for a charge-density-wave condensate in a charge-ordered manganite: Observation of collective excitation mode in Pr${}_{\text{0.7}}$Ca${}_{\text{0.3}}$MnO${}_{\text{3}}$ by using THz time-domain spectroscopy
• Magnetization studies of phase separation in La${}_{0.5}$Ca${}_{0.5}$MnO${}_3$
• Universal behavior of giant electroresistance in epitaxial La0.67Ca0.33MnO3 thin films
• Study of Percolative Transitions with First-Order Characteristics in the Context of CMR Manganites
• Non-linear effects and Joule heating in I-V curves in manganites
• Insulator to Metal Transition Induced by Disorder in a Model for Manganites
• Anomalous insulator metal transition in boron nitride-graphene hybrid atomic layers
• Unveiling First Order CMR Transitions in the Two-Orbital Model for Manganites
• Current oscillation and low-field colossal magnetoresistance effect in phase-separated manganites
• T=0 Phase Diagram of the Double-Exchange Model
• Magnetic field dependence of the magnetic phase separation in Pr1-xCaxMnO3 manganites studied by small-angle neutron scattering
• Magnetic phase diagram for a non-extensive system: Experimental connection with manganites
• Percolation and Colossal Magnetoresistance in Eu-based Hexaborides
• Highly anisotropic resistivities in the double-exchange model for strained manganites
• Electrophoretic-like gating used to control metal-insulator transitions in electronically phase separated manganite wires
• Evidences for Tsallis non-extensivity on CMR manganites
• Nanoscale Phase Coexistence and Percolative Quantum Transport
• Origin of insulating ferromagnetism in iron oxychalcogenide Ce${}_2$O${}_2$FeSe${}_2$
• Dielectrophoresis model for the colossal electroresistance of phase-separated manganites
• The transport, ultrasound, and structural properties for the charge ordered Pr1-xCaxMnO3 (0.5<=x<=0.875) manganites
• Magnetic-field cycling induced anomalous irreversibility in resistivity of charge-ordered manganites
• Alterferroicity with seesaw-type magnetoelectricity
• Scaled frequency-dependent transport in the mesoscopically phase-separated colossal magnetoresistive manganite La_{0.625-y}Pr_yCa_{0.375}MnO_3
• Phonon anomalies and charge dynamics in Fe_{1-x}Cu_{x}Cr_{2}S_{4} single crystals
• Disorder induced phase segregation in La2/3Ca1/3MnO3 manganites
• Hole-doping dependence of percolative phase separation in Pr_(0.5-delta)Ca_(0.2+delta)Sr_(0.3)MnO_(3) around half doping
• Field-Induced Ferromagnetic Order and Colossal Magnetoresistance in La_{1.2}Sr_{1.8}Mn_2O_7: a ^{139}La NMR study
• Mixed-phase description of colossal magnetoresistive manganites
• Mesoscopic electronic heterogeneities in the transport properties of V2O3 thin films
• Anomalous magnetoresistance of EuB${}_{5.99}$C${}_{0.01}$: Enhancement of magnetoresistance in systems with magnetic polarons
• Dynamical mean field theory for manganites
• Low Temperature Transport and Specific Heat Studies of Nd_{1-x}Pb_{x}MnO_{3} Single Crystals
• Resistivity Calculations for Cuprate Superconductor Systems using an Electronic Phase Separation
• Damping and softening of transverse acoustic phonons in colossal magnetoresistive La${}_{0.7}$Ca${}_{0.3}$MnO${}_3$ and La${}_{0.7}$Sr${}_{0.3}$MnO${}_3$
• Phase equilibrium in two orbital model under magnetic field
• Conductivity of electronic liquid-crystalline mesophases
• Paramagnetic Spin Correlations in Colossal Magnetoresistive La0.7Ca0.3MnO3
• Observation of Ferromagnetic Clusters in Bi0.125Ca0.875MnO3
• Ferromagnetic Clusters in the Brownmillerite Bilayered Compounds Ca2.5-xLaxSr0.5GaMn2O8: An Approach to Achieve Layered Spintronics Materials
• Effective resistances of two dimensional resistor networks
• Correlation between magnetic and transport properties of phase separated La${}_{0.5}$Ca${}_{0.5}$MnO${}_3$
• Direct visualization of percolating metal-insulator transition in V2O3 using scanning microwave impedance microscopy
• Upper critical field divergence induced by mesoscopic phase separation in the organic superconductor (TMTSF)2ReO4
• Giant Tunneling Magnetoresistance, Glassiness, and the Energy Landscape at Nanoscale Cluster Coexistence
• Electron Transport in Nanogranular Ferromagnets
• Colossal resistivity change besides magnetoresistance: an extended theoretical framework for electronic transport of manganites