Study of structural and electronic transport properties of Ce-doped LaMnO3

摘要

The structural and electronic transport properties of La1-e?‘￥Cee?‘￥MnO3 (e?‘￥=0.0-1.0) have been studied. All the samples exhibit orthorhombic crystal symmetry and the unit cell volume decreases with Ce doping. They also make a metala€“insulator transition (MIT) and transition temperature increases with increase in Ce concentration up to 50% doping. The system La0.5Ce0.5MnO3 also exhibits MIT instead of charge-ordered state as observed in the hole doped systems of the same composition.