Phase diagram and Hall effect of the electron doped manganite La<SUB>1-x</SUB>Ce<SUB>x</SUB>MnO<SUB>3</SUB>

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