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Spintronics is a field of electronics concerned with the detection and manipulation of electron spin in solid-state physics. This differs from fundamental electronics in that in addition to electron charge, the electron spin is taken into account and exploited as a further degree of freedom with possible effects toward increasing the efficiency of data storage and transfer. Spintronics is a fundamental application in quantum computing.
Spintronics is also known as spinelectronics and fluxtronics.
Spintronics is a field in nanoscale electronics that involves the detection and control of the electron’s spin. This spin is detected as a magnetic field that has one of two orientations, simply known as up or down. This provides two extra binary states to the electron’s conventional high and low charge states.
With this, there are now four different states that an electron can be in, namely:
The above states represent quantum bits, called qubits. Because of this doubling in the number states, exponential growth in storage capacity, transfer speeds, greater memory density and processing power may be possible in the near future. With the application of spintronic technology to hard drives, positive results are already being seen. Provided that newer technology can fully control the spin of the electron, then it can be applied to more practical purposes, especially in quantum computing and even in consumer electronics.