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"New topological
spintronics devices for GreenIT"
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Date: |
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Time: |
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Thursday, 29. Aug. 2019 |
Video-Recording for any system with MP4-support
- Video.mp4 (ca.355 Mb) |
15:15 – 16:25 |
Mathias Kläui
(Johannes
Gutenberg-Universität Mainz)
Abstract :
In our
information-everywhere society IT is a major player for energy consumption and
novel spintronic
devices can play a role in the quest for GreenIT.
Reducing power
consumption of mobile devices by replacing volatile memory by fast
non-volatile
spintronic memory could also improve speed and a one-memory-fits-all
approach
drastically simplifies the microelectronic architecture design.
Novel low power
magnetic memory and logic devices have been proposed using topologically
stabilized
skyrmion spin structures, where switching by alternative means, such as spin-
polarized
currents is used. We study the rich physics of the interaction between spin
currents,
photons and the
magnetization, and we have used spin-polarized charge carriers and photons
to excite spin
dynamics and gauge the ultimate speed for the manipulation of magnetization.
At the same time
we are proposing non-conventional stochastic logic devices based on
skyrmions for
ultra-low power computing.