The concept of valley polarization, which involves selectively controlling the momentum of electrons in different energy valleys of a material, has opened up new possibilities in the field of electronics and optoelectronics. Researchers have been exploring various methods to achieve valley polarization, but a universal technique has remained elusive. However, a recent study has proposed a promising universal technique based on controlling the spin of electrons. This has sparked a wave of curiosity among scientists about the potential of this technique to revolutionize valley polarization. Could this be the breakthrough researchers have been searching for?

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source: Phys.org