Template nanowires for spintronics applications: nanomagnet microwave resonators functioning in zero applied magnetic field

Abstract

Low-cost spintronic devices functioning in zero applied magnetic field are required for bringing the idea of spin-based electronics into the real-world industrial applications. Here we present first microwave measurements performed on nanomagnet devices fabricated by electrodeposition inside porous membranes. In the paper, we discuss in details a microwave resonator consisting of three nanomagnets, which functions in zero external magnetic field. By applying a microwave signal at a particular frequency, the magnetization of the middle nanomagnet experiences the ferromagnetic resonance (FMR), and the device outputs a measurable direct current (spin-torque diode effect). Alternatively, the nanodevice can be used as a microwave oscillator functioning in zero field. In order to test the resonators at microwave frequencies, we developed a simple measurement set-up.

21 pages (main text - 13 pages + Supporting Information)

References in corpus (3)

• Magnetic vortex oscillator driven by dc spin-polarized current
• Spin-transfer-driven ferromagnetic resonance of individual nanomagnets
• Current-induced two-level fluctuations in pseudo spin-valves (Co/Cu/Co) nanostructures

Cited by in corpus (6)

• Magnetic nanowires and nanotubes
• Single spin-torque vortex oscillator using combined bottom-up approach and e-beam lithography
• Analyzing the magnetic influence on magneto-optical interactions
• Film Edge Nonlocal Spin Valves
• Thermal fluctuation field for current-induced domain wall motion
• Swing switching of spin-torque valves