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Combined frequency and time domain measurements on injection-locked, constriction-based spin Hall nano-oscillators

Hache, T. ; Weinhold, T. ; Schultheiss, K. ; Stigloher, J. ; Vilsmeier, F. ; Back, C. ; Arekapudi, S. S. P. K. ; Hellwig, O. ; Fassbender, J. ; Schultheiss, H.



Abstract

We demonstrate a combined frequency and time domain investigation of injection-locked, constriction-based spin Hall nano-oscillators by Brillouin light scattering (BLS) and the time-resolved magneto-optical Kerr effect (TR-MOKE). This was achieved by applying an ac current in the GHz regime in addition to the dc current which drives auto-oscillations in the constriction. In the frequency domain, ...

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