Conference paper
Observation of resonant modes of coupled domain walls
Timothy Phung, Aakash Pushp, et al.
DRC 2014
We report on an experimental investigation of spin-orbit torque (SOT) in W(O)|CoFeB heterostructures where a thin insertion layer with negligible spin-orbit coupling is inserted at the W(O)|CoFeB interface. The SOT is found to be suppressed with the addition of the insertion layer, contrary to estimates using the transparency formalism. In addition, the SOT, as quantified by the spin Hall angle remains constant at -50% for W(O) thicknesses down to 2 nm. Our data is thus consistent with an interfacial SOT mechanism in the W(O)|CoFeB system.
Timothy Phung, Aakash Pushp, et al.
DRC 2014
Jie Zhang, Chirag Garg, et al.
Nano Letters
Jie Zhang, Chirag Garg, et al.
Nano Letters
Luc Thomas, See-Hun Yang, et al.
IEDM 2011