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Spintronics and Valleytronics

Samples placed under microscope ready for inspection

Excitons in 2D semiconductors carry spin and valley degrees of freedom that can be coupled and manipulated by external fields. We investigate spin-dependent excitonic phenomena, excitons in magnetic fields, and coupled spin–valley dynamics to reveal how these internal quantum numbers can be harnessed for information processing. A particular focus is on their interaction with free carriers, where exciton–electron mixtures open pathways to new regimes of correlated spin and valley physics.