[Figure 3] 'Spin loss' based magnetization switching (IMAGE)
Caption
A structure that describes a new principle by which a magnetic material can self-switch its magnetization direction through spin loss when a current is passed through it. When current flows, spins are generated inside the magnetic material, and some spins escape in the direction of the antiferromagnet on the right. Normally, this spin escape is considered a 'loss', but in this study, this loss creates the same effect as the spin entering the magnetic material, and becomes the driving force to reverse the magnetization by itself. As shown in the figure on the left, when a pulsed current is applied to the inside of the magnet, some of the spin generated inside the magnet is 'lost' to the adjacent antiferromagnet, reversing the direction of magnetization within the magnet. The direction of the magnetization reversal is dependent on the direction of the applied current pulse.
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Korea Institute of Science and Technology(KIST)
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