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In this work the fabrication and low Reynolds number swimming performance of a single helical turn micropropeller with easily scalable and reproducible geometry is described. The propeller is designed to explore recently revealed routes to optimize chiral magnetic microswimmers regarding high speed propulsion and maneuverability. This is achieved by velocity evaluation of micropropellers of varying...
Nanoscale light‐emitting diodes (nanoLEDs) and arrays of nanoLEDs produced by laser controlled diffusion of interstitial manganese (Mni) donor ions out of the ferromagnetic semiconductor (GaMn)As towards the underlying layers of a quantum well heterostructure. The approach represents an alternative to deep etching for the creation of nanoscale current channels and nanoLEDs.
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