Electric field control of magnetization direction across the antiferromagnetic to ferromagnetic transition

Sharp magnetization step across the ferromagnetic to antiferromagnetic transition in doped-CeFe2 alloys

Very sharp magnetization step is observed across the field induced antiferromagnetic to ferromagnetic transition in various doped-CeFe2 alloys, when the measurement is performed below 5K. In the higher temperature regime (T>5K) this transition is quite smooth in nature. Comparing with the recently observed similar behaviour in manganties showing colossal magnetoresistance and magnetocaloric mat...

Ferromagnetic-antiferromagnetic transition in „La-R...4Ba2Cu2O10

Cuprate La-R 4Ba2Cu2O10 shows ferromagnetic to antiferromagnetic phase transition by replacing La ions with rare earth R=Nd, Sm, Eu, and Gd ions at low temperature. We propose that the transition is caused by a competition between antiferromagnetic superexchange interaction of Cu spins via La ions and ferromagnetic superexchange interaction due to Hund’s rule coupling of spins of holes on oxyge...

Electric field control of magnon-induced magnetization dynamics in multiferroics

We consider theoretically the effect of an inhomogeneous magnetoelectric coupling on the magnon-induced dynamics of a ferromagnet. The magnon-mediated magnetoelectric torque affects both the homogeneous magnetization and magnon-driven domain wall motion. In the domains, we predict a reorientation of the magnetization, controllable by the applied electric field, which is almost an order of magni...

Reversible electric-field control of magnetization at oxide interfaces.

Electric-field control of magnetism has remained a major challenge which would greatly impact data storage technology. Although progress in this direction has been recently achieved, reversible magnetization switching by an electric field requires the assistance of a bias magnetic field. Here we take advantage of the novel electronic phenomena emerging at interfaces between correlated oxides an...

Exchange coupling induced antiferromagnetic-ferromagnetic transition in Pr0.5Ca0.5MnO3/La0.5Ca0.5MnO3 superlattices.