Improving Memory Efficiency with the Orbital Hall Effect
Author Information
Author(s): Gupta Rahul, Bouard Chloé, Kammerbauer Fabian, Ledesma-Martin J. Omar, Bose Arnab, Kononenko Iryna, Martin Sylvain, Usé Perrine, Jakob Gerhard, Drouard Marc, Kläui Mathias
Primary Institution: Institute of Physics, Johannes Gutenberg University Mainz, Germany
Hypothesis
Can the integration of Ru in SOT-MRAM devices enhance switching efficiency compared to traditional materials?
Conclusion
The study demonstrates a significant enhancement in torque efficiency and a reduction in switching current when using Ru in SOT-MRAM devices.
Supporting Evidence
- The integration of Ru in SOT-MRAM devices led to a ~30% enhancement in damping-like torque efficiency.
- Using Ru resulted in a ~20% reduction in switching current compared to pure Pt.
- The switching power was reduced by more than 60% with Ru-based devices.
- More than 250 devices were tested to ensure statistical significance in the results.
Takeaway
This study shows that using a special material called Ru can help make memory devices work better and use less power.
Methodology
The study involved fabricating SOT-MRAM devices with various OHE layers and measuring their performance under controlled conditions.
Statistical Information
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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