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Semiconductor lasers

Taken for a spin

A built-in semiconductor/nanomagnet interface acts as a spin filter in a conventional laser to produce circularly polarized emission without the need for external spin-polarized pumping.

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Figure 1: The working principle of a spin-laser with a built-in spin filtering mechanism.

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Correspondence to Igor Žutić or Paulo E. Faria Junior.

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Žutić, I., Faria, P. Taken for a spin. Nature Nanotech 9, 750–752 (2014). https://doi.org/10.1038/nnano.2014.228

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