Applied Physics Department, Maharaja Agrasen Institute of Technology, GGSIP University, Rohini, New Delhi - 110 086. E-mail: kchopra2003@gmail.com
Online published on 5 August, 2015.
Spintronics, or spin electronics, is based on the controlling and manipulating the spin degrees of freedom in solid-state systems. The basic principles of the generation of carrier spin polarization, spin dynamics, and spin-polarized transport have been discussed. It is important to note that the spin transport is basically different from the charge transport, as the spin in solids is dependent on the spin-orbit and hyperfine coupling, and thus is a nonconserved quantity. A short technological note on some novel concepts connected with spintronics from the applications point of view has been presented for the benefit of the new researchers and designers in this fast growing field.
Spintronics, spin transfer, spin transfer torque, spin-pumping force and spin currents, tunneling anisotropic magnetoresistance (TAMR), TMR in semiconductor magnetic tunnel junction, spin injection and optical orientation
