@article{33412,
  keywords = {Electrochemistry, Magnetic field, Room temperature, Kinetics, Reaction kinetics, Polarization, Magnetism, Electric field, Article, Priority journal, Theoretical study, Magnetization, Rotation, Thermodynamics, Torque, Electric conductivity},
  author = {J.T Heron and J.L Bosse and Q He and Y Gao and M Trassin and L Ye and J.D Clarkson and C W Wang and J F Liu and S Salahuddin and D.C Ralph and D.G Schlom and J Íñiguez and B.D Huey and Ramamoorthy Ramesh},
  title = {Deterministic switching of ferromagnetism at room temperature using an electric field},
  abstract = {The technological appeal of multiferroics is the ability to control magnetism with electric field1-3. For devices to be useful, such control must be achieved at room temperature. The only single-phase multiferroicmaterial exhibiting unambiguousmagnetoelectric coupling at room temperature is BiFeO3 (refs 4 and 5). Its weak ferromagnetismarises fromthe canting of the antiferromagnetically aligned spins by the Dzyaloshinskii-Moriya (DM) interaction6-9. Prior theory considered the symmetry of the thermodynamic ground state and concluded that direct 180-degree switching of theDMvector by the ferroelectric polarization was forbidden10,11. Instead, we examined the kinetics of the switching process, something not considered previously in theoretical work10-12. Here we show a deterministic reversal of theDMvector and cantedmoment using an electric field at roomtemperature. First-principles calculations reveal that the switching kinetics favours a two-step switching process. In each step the DMvector and polarization are coupled and 180-degree deterministic switching of magnetization hence becomes possible, in agreement with experimental observation. We exploit this switching to demonstrate energy-efficient control of a spin-valve device at room temperature. The energy per unit area required is approximately an order of magnitude less than that needed for spin-transfer torque switching13,14.Given that theDMinteraction is fundamental to singlephasemultiferroics andmagnetoelectrics3,9, our results suggest ways to engineermagnetoelectric switching and tailor technologically pertinent functionality for nanometre-scale, low-energy-consumption, non-volatile magnetoelectronics. © 2014 Macmillan Publishers Limited.},
  year = {2014},
  journal = {Nature},
  volume = {516},
  number = {7531},
  pages = {370-373},
  publisher = {Nature Publishing Group},
  issn = {00280836},
  doi = {10.1038/nature14004},
  note = {cited By 323},
  language = {eng},
}