Magnetization study in LaCr1−xAlxO3 (0 ≤ x ≤ 0.95)

The structural and magnetic properties of the Al-doped LaCrO3 have been investigated. The samples were produced by combustion method using urea as fuel. X-ray diffraction measurement shows that all samples are formed in a single phase. It is observed that increasing the Al content induces a structural phase transition from orthorhombic to a rhombohedral structure. The magnetic measurements indicate that all samples have an antiferromagnetic order with a strong decrease in the magnetic ordering temperature with increasing Al content. The consistent variation of the magnetic moment confirms that the Al3+ ion replaced the Cr3+ ion on the B-site of the perovskite.