6533b859fe1ef96bd12b7f70
RESEARCH PRODUCT
High-temperature transport properties of La0.67Ca0.33MnO3 films
W. WesterburgF. MartinGerhard JakobH. Adriansubject
Materials scienceColossal magnetoresistanceCondensed matter physicsMagnetoresistanceGiant magnetoresistanceActivation energyCondensed Matter PhysicsPolaronElectronic Optical and Magnetic MaterialsMagnetic fieldCondensed Matter::Materials ScienceElectrical resistivity and conductivityCurie temperatureCondensed Matter::Strongly Correlated Electronsdescription
Abstract The giant negative magnetoresistance in manganites has been investigated from the Curie temperature T c up to 600 K (2.6 T c ) in magnetic fields up to 8 T. Nonadiabatic small polaron hopping can successfully describe the temperature dependence of the resistivity. The magnetic field influence on the activation energy is explained by the interaction of unclustered ions with small spin clusters of four ions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-05-01 | Journal of Magnetism and Magnetic Materials |