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PRODID:-//Memento EPFL//
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SUMMARY:The skyrmion switch: turning magnetic skyrmion bubbles on and off 
 with electric field
DTSTART:20170614T131500
DTSTAMP:20260428T053922Z
UID:474efbc4f7aefb993e5dd4e041e513acf69f075c28f62b3b4020f32f
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Anne Bernand-Mantel\, Institute Neel\, Grenoble\nNanoscale
  magnetic skyrmions are considered as potential future information carrier
 s for spintronics memory devices. While the theory on magnetic skyrmions h
 as been developed almost 30 years ago\, the recent observation of nanoscal
 e skyrmions at room temperature and their displacement with low electrical
  current densities has motivated a revival of theoretical studies. Despite
  the existence of a well-developed formalism on magnetic skyrmions\, some 
 questions remain open in particular concerning their stability. \n\nI wil
 l start by a didactic overview of magnetic skyrmion theory and experiments
  with an emphasis on the different possible energies involved in their sta
 bilisation. The second part will be devoted our recent experimental result
 s on the control of the stability of skyrmionics bubbles (large skyrmions)
  using electric field gating.\n\nI will present a detailed stability diagr
 am of the skyrmion bubbles in a Pt/Co/oxide trilayer which is quantitative
 ly explained by an analytical model taking into account the dipolar and Dz
 yaloshinsky-Moria interactions which both contribute to the skyrmion bubbl
 e stability. Then I will make the demonstration of the skyrmion switch eff
 ect which allows us to write and erase skyrmions using only electric field
 .
LOCATION:PH L1 503 http://plan.epfl.ch/?request_locale=fr&room=PHL1503
STATUS:CONFIRMED
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