Part 5/10:
A fundamental device within the realm of spintronics is the Magnetic Tunnel Junction (MTJ)—a structure that comprises two magnetic layers separated by a thinner insulating barrier. The configuration of spins in these layers determines whether electrons can tunnel through the barrier, effectively acting as binary switches (0s and 1s). The operational principles behind MTJs could lay the foundation for future spintronic computing methods, where complex computations could occur directly within memory.