Spinflödet
Spinflödet, or spin flow, refers to the transport of spin angular momentum in solid-state systems, occurring with or without accompanying charge transport. It includes both diffusive spin currents carried by electrons and magnonic spin currents in magnetic insulators. Spinflödet is a central concept in spintronics, where the manipulation of spin transport enables new forms of information processing and storage.
In continuum descriptions, the spin current density j_s represents the flow of spin per unit area per
Spin currents can arise from electrical injection, the spin Hall effect—where charge currents generate transverse spin
Experimentally, spinflödet is detected by methods such as the inverse spin Hall effect, non-local spin valve
Applications of spinflödet include spintronic memory (MRAM), low-power logic devices, magnetic sensors, and magnonic circuits that
The term is used in Swedish and international literature; in English, “spin current” or “spin flow” describe