Abstract
We present time-resolved measurements of the displacement of magnetic domain-walls (DWs) driven by vertical spin-polarized currents in track-shaped magnetic tunnel junctions. In these structures, we observe very high DW velocities (600 m/s) at current densities below 107 A/cm2. We show that the efficient spin-transfer torque combined with a short propagation distance allows avoiding the Walker breakdown process and achieving deterministic, reversible, and fast (≈1 ns) DW-mediated switching of magnetic tunnel junction elements, which is of great interest for the implementation of fast DW-based spintronic devices. © 2013 AIP Publishing LLC.
Original language | English |
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Pages (from-to) | 242415-1 - 242415-4 |
Journal | Applied Physics Letters |
Volume | 103 |
Issue number | 24 |
DOIs | |
Publication status | Published - 2013 |