Electrical Control of the Magnetic State of Fe
- Karlsruhe Institute of Technology, Karlsruhe, Germany
- Physikalisches Institut, Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
- Faculty of Physics, Babes-Bolyai University, 400084 Cluj-Napoca, Romania
- ORNL
- Max Planck Institut for Mikrostructure Physics, Halle, Germany
- Max Planck Institute of Microstructure Physics
- Martin-Luther-Universität Halle-Wittenberg, Institut für Physik, 06099 Halle, Germany
Magneto-electric coupling offers a new pathway to information storage in magnetic memory devices. This phenomenon has been observed in various materials ranging from insulators to semiconductors. In bulk metallic systems, magneto-electric coupling has been disregarded as the electric field cannot enter bulk metals. In this work, we show that a substantial magneto-electric coupling exists in metallic Fe nano-islands grown on Cu(111). Using the electric field in the tunnel junction of a scanning tunneling microscope, the magnetic order parameter and the crystal structure of Fe was changed on the nanometer scale. This allows high density nonvolatile information storage by means of magneto-electric coupling in a simple metallic system.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC05-00OR22725
- OSTI ID:
- 1050406
- Journal Information:
- IEEE Transactions on Magnetics, Vol. 47, Issue 6; ISSN 0018-9464
- Country of Publication:
- United States
- Language:
- English
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