Title of article
Cobaltites: New materials with magnetoresistance properties
Author/Authors
Maignan، A. نويسنده , , Raveau، B. نويسنده , , Pelloquin، D. نويسنده , , Hébert، S. نويسنده , , Motohashi، T. نويسنده ,
Pages
-295
From page
296
To page
0
Abstract
Oxygen-deficient perovskite cobaltites Sr1-x Ax CoO3-(delta) and SrCo1-y My O3-(delta)ʹ have been prepared by solid-state reaction. These compounds can be either ferromagnetic metals or magnetically disordered insulators. Magnetoresistance values in 7 T reach -5% near TC and up to -17% at 5 K. These properties are discussed in the light of the eg character of the conduction band revealed by Seebeck measurements.
Keywords
Cobaltites , Seebeck measurements , Solid-state reaction , Magnetoresistance
Journal title
Astroparticle Physics
Record number
115905
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