Room temperature exchange bias in antiferromagnetic composite BiFeO3-TbMnO3
Room temperature exchange bias in antiferromagnetic composite BiFeO3-TbMnO3
The magnetic property of a 0.7BiFeO3-0.3TbMnO3 composite has been studied in detail and compared with that of 0.8BiFeO3-0.2TbMnO3. The magnetic properties in 0.7BiFeO3-0.3TbMnO3 are improved in manifold compared to BiFeO3. An exchange bias (HEB) is observed in both the compositions of these antiferromagnetic composites, which varies between 5 and 180 …