DPG Phi
Verhandlungen
Verhandlungen
DPG

Berlin 2005 – scientific programme

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MA: Magnetismus

MA 20: Poster:Schichten(1-29),Spintrsp(30-45),Ex-Bias(46-63),Spindyn(64-75),Mikromat.(76-80),Cluster(81-94),Abbv.(95-99),Obflm(100-02),SpElek.(103-09),E-Theo(110-14),Mikromag.(115-16),Spin+PÜ(117-26),Mag.Mat.(127-51),Meth.(152-55),Mol.Mag(156-59),Kondo(160-65

MA 20.1: Poster

Monday, March 7, 2005, 14:00–18:00, Poster TU C

Pulsed laser deposition of electron-doped La1−xCexCoO3 thin films — •Dirk Fuchs1, Peter Adelmann1, Peter Schweiss1, Thorsten Schwarz1,2, and Rudolf Schneider11Forschungszentrum Karlsruhe, Institut für Festkörperphysik, D-76021 Karlsruhe, Germany — 2Universität Karlsruhe, Fakultät für Physik, D-76128 Karlsruhe, Germany

The electron doping of LaCoO3 perovskites with the substitution of trivalent La3+ by tetravalent Ce4+ ions is usually strongly limited by the small solubility of Ce under standard conditions. With thin film preparation we succeeded in the growth of highly cerium-doped thin films. La1−xCexCoO3 (LCCO) thin films, with 0.1≤ x ≤ 0.5 , were deposited by laser ablation using a KrF excimer laser. The deposition was carried out from polycrystalline LCCO targets prepared by the sol-gel route and standard solid state reaction. The film growth was studied as a function of the substrate temperature and material, laser energy and oxygen partial pressure. The films were optimised with respect to crystalline quality. The magnetic and electric properties of the samples were characterized by magnetization and resistivity measurements.

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