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Effect of Temperature on Magnetic Solitons Induced by Spin-Transfer Torque

Effect of Temperature on Magnetic Solitons Induced by Spin-Transfer Torque

Scientific Highlights Materials for information science and electronics 14 June 2017 1742 hits jags

Sergi Lendínez, Jinting Hang, Saül Vélez, Joan Manel Hernández, Dirk Backes, Andrew D. Kent, and Ferran Macià. Phys. Rev. Applied 7, 054027. DOI:https://doi.org/10.1103/PhysRevApplied.7.054027

The quest to harness dynamic collective excitations, such as spin waves or dissipative solitons, as a basis for spintronics continues. This study shows that thermal fluctuations have a significant effect on the dynamics of magnetic excitations induced by spin-transfer torque (STT), and provide a pathway to controlling spin-wave condensation, propagation, stochasticity, and stability. As it turns out, droplet solitons nucleate for lower current densities at lower temperatures, in contrast to typical STT-induced switching between static magnetic states.

Related Topics: Materials for information science and electronics

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