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Electron waves refract negatively
https://www.sciencenews.org/article/electron-waves-refract-negatively
Electrons coursing through a sheet of carbon atoms exhibited negative refraction, bending at angles not seen in nature, physicists report September 14 in Nature Physics. By exploiting this unusual bending, the researchers created a lenslike device to focus the electrons to a tiny point. The new technique could help physicists learn how to manipulate electrons in the tight confines of miniaturized electronic devices, where the particles often behave like waves.
Electrons coursing through a sheet of carbon atoms exhibited negative refraction, bending at angles not seen in nature, physicists report September 14 in Nature Physics. By exploiting this unusual bending, the researchers created a lenslike device to focus the electrons to a tiny point. The new technique could help physicists learn how to manipulate electrons in the tight confines of miniaturized electronic devices, where the particles often behave like waves.
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