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Christian Binek

2012

Magnet

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Full-Text Articles in Physical Sciences and Mathematics

Electrically Controlled Magnetism, Christian Binek, Xi He, Yi Wang, S. Sahoo Mar 2012

Electrically Controlled Magnetism, Christian Binek, Xi He, Yi Wang, S. Sahoo

Christian Binek

Manipulation of magnetically ordered states by electrical means is a promising approach towards novel spintronics devices. We report on the electric control of surface magnetism in Cr2O3 thin films and uniaxial anisotropy in ferroelectric/ferromagnetic heterostructures, respectively. Artificial magnetoelectricity is realized in a BaTiO3/Fe heterostructure. Here, thermally induced coercivity changes of the Fe hysteresis loop are used to derive the stress imposed by the ferroelectric BaTiO3 substrate on the adjacent Fe film. Electrically induced coercivity changes give rise to a giant magnetoelectric susceptibility in the vicinity of the magnetic coercive field.