Scientists achieve giant Rashba–Dresselhaus spin splitting in 2D chiral metal-organic frameworks

Scientists from the University of Science and Technology of China have developed two-dimensional chiral metal-organic frameworks (CMOFs) that exhibit significant Rashba-Dresselhaus (R-D) spin splitting. This effect, driven by spin-orbit coupling in non-magnetic environments, is crucial for advancing spintronic devices. The team utilized first-principles calculations to identify key factors—chirality, strong spin-orbit coupling, narrow band gap, specific symmetry, and strong ligand fields—that enhance R-D spin splitting in CMOFs. This breakthrough paves the way for future developments in 2D R-D semiconductors.

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