Phase diagram and Hall effect of the electron doped manganite La1−xCexMnO3

We report on the electronic, transport, and magnetic properties of the Ce-doped manganite, La1−xCexMnO3. This material is remarkably similar to the heavily investigated hole doped manganite La1−xCaxMnO3; e.g., both materials show Curie temperatures of TC∼250 K for x=0.3. The main difference which ma...

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Veröffentlicht in:Journal of applied physics 2003-05, Vol.93 (10), p.8328-8330
Hauptverfasser: Raychaudhuri, P., Mitra, C., Mann, P. D. A., Wirth, S.
Format: Artikel
Sprache:eng
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Zusammenfassung:We report on the electronic, transport, and magnetic properties of the Ce-doped manganite, La1−xCexMnO3. This material is remarkably similar to the heavily investigated hole doped manganite La1−xCaxMnO3; e.g., both materials show Curie temperatures of TC∼250 K for x=0.3. The main difference which makes the Ce-doped material highly interesting for basic research as well as for possible applications (e.g., in spintronics) is the fact that Ce doping drives the manganese in a mixture of Mn2+ and Mn3+ induced by electron doping. We present conclusive evidence for electron doping by x-ray absorption spectroscopy and Hall measurements on single phase epitaxial thin films. From transport measurements on a series of La1−xCexMnO3, the magnetic phase diagram of La1−xCexMnO3 is established.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.1556976