Highly efficient in-line magnetic domain wall injector.
basic_science · Level V
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- Record sourced from PubMed, PMID 25584482.
- Also identified by DOI 10.1021/nl503391k.
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Abstract
We demonstrate a highly efficient and simple scheme for injecting domain walls into magnetic nanowires. The spin transfer torque from nanosecond long, unipolar, current pulses that cross a 90° magnetization boundary together with the fringing magnetic fields inherently prevalent at the boundary, allow for the injection of single or a continual stream of domain walls. Remarkably, the currents needed for this "in-line" domain wall injection scheme are at least one hundred times smaller than conventional methods.