https://phys.org/news/2018-05-current.html > Spintronics is an emerging field of nanoscale electronics which uses not only the charge of electrons but also the spin of electrons. The technology doesn't require a specialized semiconductor material resulting in reduced manufacturing costs. > Other advantages include less energy requirement, as well as low power consumption with competitive data transfer and storage capacity. It has been used in a variety of devices for information processing, memory and storage—in particular, ultra-high density hard drives and non-volatile memories.