Achievement

IGERT Fellow Ted Gudmundsen fabricated superconducting microwave cavities of niobium. The cavities, which are only a few hundreds of nanometers wide, but several centimeters long, are narrower than those previously published in literature, and promise to have higher sensitivity than previous devices. Gudmundsen plans to combine these devices with nanomagnets to enable low-current switching of nanomagnets, more sensitive ferromagnetic resonance measurements, and stabilization of spin-torque oscillators. Such devices could potentially lead to non-volatile magnetic memory for quantum computers.