Back to Search
Start Over
Large voltage tuning of Dzyalonshinskii-Moriya interaction: towards a chirality switch?
- Source :
- Proceedings of SPIE, the International Society for Optical Engineering, Proceedings of SPIE, the International Society for Optical Engineering, SPIE, The International Society for Optical Engineering, 2018, Spintronics XI, 10732, pp.1073232. ⟨10.1117/12.2323104⟩, Proceedings of SPIE, the International Society for Optical Engineering, 2018, Spintronics XI, 10732, pp.1073232. ⟨10.1117/12.2323104⟩
- Publication Year :
- 2018
- Publisher :
- HAL CCSD, 2018.
-
Abstract
- Electric field can tune interfacial magnetism, thus paving the way towards new low power devices using gate voltage. In particular, its effect on skyrmions, which are promising to code information bits, is a critical issue. Here, we first address the effect of electric field on interfacial anisotropy in Pt/Co/AlOx ultrathin trilayers and the possibility to control skyrmion nucleation and annihilation with gate voltage. Then we report the effect of electric field on the interfacial interaction responsible for skyrmions, namely Dzyaloshinskii-Moriya Interaction (DMI). We demonstrate an unprecedented large electric field effect on DMI (βDMI = 600 fJV-1m-1) in Ta/FeCoB/TaOx ultrathin trilayers through Brillouin Light Scattering spectroscopy. Additional Kerr effect observations lead us to propose that electric field could ultimately reverse the sign of DMI, resulting in chirality switch.
- Subjects :
- Materials science
Kerr effect
Magnetism
health care facilities, manpower, and services
education
02 engineering and technology
anisotropy
Brillouin Light Scattering
01 natural sciences
electric field effect
skyrmion
Dzyalonshinskii-Moriya interaction
Electric field
0103 physical sciences
[SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics
010306 general physics
Anisotropy
health care economics and organizations
Condensed matter physics
Skyrmion
021001 nanoscience & nanotechnology
Chirality (electromagnetism)
Brillouin zone
[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]
0210 nano-technology
Voltage
Subjects
Details
- Language :
- English
- ISSN :
- 0277786X and 1996756X
- Database :
- OpenAIRE
- Journal :
- Proceedings of SPIE, the International Society for Optical Engineering, Proceedings of SPIE, the International Society for Optical Engineering, SPIE, The International Society for Optical Engineering, 2018, Spintronics XI, 10732, pp.1073232. ⟨10.1117/12.2323104⟩, Proceedings of SPIE, the International Society for Optical Engineering, 2018, Spintronics XI, 10732, pp.1073232. ⟨10.1117/12.2323104⟩
- Accession number :
- edsair.doi.dedup.....9575645bd1f382d7965fd4316a549f7b