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- W4295152168 abstract "We investigate a W-Ta alloying route to reduce the auto-oscillation current densities and the power consumption of nano-constriction based spin Hall nano oscillators. Using spin-torque ferromagnetic resonance (ST-FMR) measurements on microbars of W$_{text{100-x}}$Ta$_{text{x}}$(5 nm)/CoFeB(t)/MgO stacks with t = 1.4, 1.8, and 2.0 nm, we measure a substantial improvement in both the spin-orbit torque efficiency and the spin Hall conductivity. We demonstrate a 34% reduction in threshold auto-oscillation current density, which translates into a 64% reduction in power consumption as compared to pure W-based SHNOs. Our work demonstrates the promising aspects of W-Ta alloying for the energy-efficient operation of emerging spintronic devices." @default.
- W4295152168 created "2022-09-11" @default.
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- W4295152168 date "2022-08-05" @default.
- W4295152168 modified "2023-10-18" @default.
- W4295152168 title "Energy-Efficient <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline overflow=scroll><mml:msub><mml:mi mathvariant=normal>W</mml:mi><mml:mrow><mml:mn>100</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mi>Ta</mml:mi><mml:mi>x</mml:mi></mml:msub><mml:mo>/</mml:mo></mml:math> Co-Fe-B/MgO Spin Hall Nano-Oscillators" @default.
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- W4295152168 doi "https://doi.org/10.1103/physrevapplied.18.024017" @default.
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