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Static magnetization switching in an artificial antiferromagnetic multilayer driven by a voltage-controlled magnetic anisotropy effect.
Nature materials · · Journal Article · Open access
Nakayama, Nozaki + more
Abstract ↗AI summary
The abstract is read at the publisher; the summary is JClub's.
VCMA-driven static magnetization switching in an artificial antiferromagnetic trilayer shows repeatable bidirectional switching with bipolar voltages across a wide range of pulse widths.
- Why it matters: Conventional VCMA dynamic switching needs sub-nanosecond pulses and is sensitive to picosecond pulse-width variations, which can cause switching failure and blocks voltage-controlled magnetoresistive random-access memory development.
- What they did: The team used an artificial antiferromagnetic trilayer with interlayer exchange coupling and applied bipolar voltage pulses to drive VCMA-based static switching, then tested switching repeatability versus pulse width.
- The result: Static switching remains effective over a wide range of pulse widths, implying this writing approach could enable ultralow-power spintronic devices with less timing precision than dynamic VCMA switching.
The findingWhy it mattersWhat they didThe result
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- Open access
- 6 cites