27 Jan '15, 9am

Chemists control perovskite structure to unlock magnetisation and polarisation at once

Chemists control perovskite structure to unlock magnetisation and polarisation at once

Crystalline materials that combine electrical polarisation and magnetisation could be advantageous in applications such as information storage, but these properties are usually considered to have incompatible chemical bonding and electronic requirements. Now, scientists at the University of Liverpool, UK, working on perovskite (Cay Sr1-y )1.15 Tb1.85 Fe2 O7 , have controlled the structure of the material to simultaneously generate both magnetisation and electrical polarisation above room temperature. The two resulting properties are magnetoelectrically coupled as they arise from the same displacements, an advance which has potential applications in information storage and processing, say the researchers who published the results in Science last week. For information storage, these materials can combine low-power electrical writing of information with non-destructive magnet...

Full article: http://www.compoundsemiconductor.net/article/96230-chemis...

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