Figure 1 | Scientific Reports

Figure 1

From: Magneto Acoustic Spin Hall Oscillators

Figure 1

Magneto acoustic spin Hall oscillators that combine the tunability of the standard STNO with high Q of the HBAR on a single chip. Voltage oscillations across a three-terminal MTJ is shaped by the transmission response of the HBAR and fed back to the MTJ after a certain delay using (a) strain, (b) current, or (c) magnetic field via a CPW (coplanar waveguide), causing high Q filtering and delayed feedback. Proposed concept shows a significant enhancement in the linewidth with all feedback methods, simultaneously preserving the key frequency tunability feature of STNOs.

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