Spin-polarized surface states are electronic states that exist on the surfaces of certain materials, particularly topological insulators, where the spin of the electrons is aligned preferentially in one direction. These states arise due to strong spin-orbit coupling and are protected by time-reversal symmetry, making them robust against perturbations. They are crucial for understanding the unique electronic properties of topological insulators, where these surface states can lead to phenomena such as spin transport and quantum computing applications.
congrats on reading the definition of spin-polarized surface states. now let's actually learn it.