spin-polarized fermions

Spin-polarized fermions are particles that follow the Pauli exclusion principle, meaning no two can occupy the same quantum state simultaneously. Their "spin" is a fundamental property that can be aligned in a specific direction, leading to a state called "spin polarization." When fermions are spin-polarized, they all have their spins pointing the same way, which affects how they interact and behave collectively. This concept is important in quantum physics, influencing phenomena like superconductivity and the behavior of electrons in magnetic materials, where aligned spins create unique collective states.