Electric Field-Induced Modification of Magnetism in Thin-Film Ferromagnets
Commissariat à l'Énergie Atomique et aux Énergies Alternatives · Leibniz Institute for Solid State and Materials Research · +3 more institutions
Abstract
A large electric field at the surface of a ferromagnetic metal is expected to appreciably change its electron density. In particular, the metal's intrinsic magnetic properties, which are commonly regarded as fixed material constants, will be affected. This requires, however, that the surface has a strong influence on the material's properties, as is the case with ultrathin films. We demonstrated that the magnetocrystalline anisotropy of ordered iron-platinum (FePt) and iron-palladium (FePd) intermetallic compounds can be reversibly modified by an applied electric field when immersed in an electrolyte. A voltage change of -0.6 volts on 2-nanometer-thick films altered the coercivity by -4.5 and +1% in FePt and…
Citation impact
- FWCI
- 19.68
- Percentile
- 100%
- References
- 10
Authors
6- MWMartin WeisheitCorresponding
Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Leibniz Institute for Solid State and Materials Research, CEA Grenoble, Institut Néel, Laboratoire d’Electrochimie et de Physico-chimie des Matériaux et des Interfaces
- SFS. Fähler
Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Leibniz Institute for Solid State and Materials Research, CEA Grenoble, Institut Néel, Laboratoire d’Electrochimie et de Physico-chimie des Matériaux et des Interfaces
- AMA. Marty
Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Leibniz Institute for Solid State and Materials Research, CEA Grenoble, Institut Néel, Laboratoire d’Electrochimie et de Physico-chimie des Matériaux et des Interfaces
- YSY. Souche
Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Leibniz Institute for Solid State and Materials Research, CEA Grenoble, Institut Néel, Laboratoire d’Electrochimie et de Physico-chimie des Matériaux et des Interfaces
- CPC. Poinsignon
Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Leibniz Institute for Solid State and Materials Research, CEA Grenoble, Institut Néel, Laboratoire d’Electrochimie et de Physico-chimie des Matériaux et des Interfaces
Topics & keywords
- Magnetism
- Magnetocrystalline anisotropy
- Condensed matter physics
- Coercivity
- Materials science
- Ferromagnetism
- Electric field
- Thin film