Magnetoresistive memory in phase-separated LaCaMnO

Nonlinear transport in nanoscale phase separated colossal magnetoresistive oxide thin films

transport in nanoscale phase separated colossal magnetoresistive oxide thin films" (2014). Preparation of rare-earth manganite-oxide thin films by metalorganic aerosol deposition technique Appl. We report a study of the I-V characteristics of 2.5–5.4 nm epitaxial La 1Àx Sr x MnO 3 (x ¼ 0.33 and 0.5) and La 0.7 Ca 0.3 MnO 3 thin films. While La 0.67 Sr 0.33 MnO 3 films exhibit linear conduction ...

Nanostructures from Phase Separated Polymers

Tunneling magnetoresistance in phase-separated manganite nanobridges

The manganite La,Pr,Ca MnO3 is well known for its micrometer-scale phase separation into coexisting ferromagnetic metallic FMM and insulating regions. Fabrication of bridges with widths smaller than the phase-separation length scale has allowed us to probe the magnetic properties of individual phase-separated regions. At the onset of phase separation, a magnetic field induced insulator-to-metal...

Spin-dependent Transport in Phase-separated Manganites

Starting from the assumption that ferromagnetically correlated regions exist in manganites even in the absence of long-range magnetic order, we construct a model of charge transfer due to the spin-dependent tunnelling of charge carriers between such regions. This model allows us to analyze the temperature and magnetic field dependence of resistivity, magnetoresistance, and magnetic susceptibili...

Intrinsic tunneling in phase separated manganites.

We present evidence of direct electron tunneling across intrinsic insulating regions in submicrometer wide bridges of the phase-separated ferromagnet (La,Pr,Ca)MnO3. Upon cooling below the Curie temperature, a predominantly ferromagnetic supercooled state persists where tunneling across the intrinsic tunnel barriers (ITBs) results in metastable, temperature-independent, high-resistance plateaus...