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Electric field modulation of magnetic exchange in molecular helices
- Source :
- Nature Materials. 18:329-334
- Publication Year :
- 2019
- Publisher :
- Springer Science and Business Media LLC, 2019.
-
Abstract
- The possibility to operate on magnetic materials through the application of electric rather than magnetic fields—promising faster, more compact and energy efficient circuits—continues to spur the investigation of magnetoelectric effects. Symmetry considerations, in particular the lack of an inversion centre, characterize the magnetoelectric effect. In addition, spin–orbit coupling is generally considered necessary to make a spin system sensitive to a charge distribution. However, a magnetoelectric effect not relying on spin–orbit coupling is appealing for spin-based quantum technologies. Here, we report the detection of a magnetoelectric effect that we attribute to an electric field modulation of the magnetic exchange interaction without atomic displacement. The effect is visible in electron paramagnetic resonance absorption of molecular helices under electric field modulation and confirmed by specific symmetry properties and spectral simulation. A modulation of the magnetic exchange interaction using an electric field, in the absence of atomic displacement and not relying on spin–orbit coupling, is reported.
- Subjects :
- Models, Molecular
Molecular Conformation
Magnetoelectric effect
02 engineering and technology
010402 general chemistry
01 natural sciences
law.invention
Electricity
law
Electric field
Organometallic Compounds
General Materials Science
Electron paramagnetic resonance
Physics
Manganese
Condensed matter physics
business.industry
Mechanical Engineering
Charge density
General Chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
0104 chemical sciences
Magnetic exchange
Magnetic field
Quantum technology
Magnetic Fields
Mechanics of Materials
0210 nano-technology
business
Subjects
Details
- ISSN :
- 14764660 and 14761122
- Volume :
- 18
- Database :
- OpenAIRE
- Journal :
- Nature Materials
- Accession number :
- edsair.doi.dedup.....0f1cc8352c29495ecd9c89684b5c61f6