Nanoscale Spin Manipulation with Pulsed Magnetic Gradient Fields from a Hard Disc Drive Writer

• DOI: 10.1021/acs.nanolett.8b01387
• Publication Date: 2018-07-31T23:21:01Z
• Authors: S. Bodenstedt; I. Jakobi; J. Michl; I. Gerhardt; P. Neumann; J. Wrachtrup
• Keywords: Condensed Matter - Mesoscale and Nanoscale Physics; Mesoscale and Nanoscale Physics (cond-mat.mes-hall); 0103 physical sciences; FOS: Physical sciences; Physics - Applied Physics; Applied Physics (physics.app-ph); 01 natural sciences

The individual and coherent control of solid-state based electron spins is important covering fields from quantum information processing metrology to material research medical imaging. Especially for the in nanoscale networks, generation strong, fast localized magnetic crucial. Highly-engineered devices that demonstrate most desired features are found nanometer size writers hard disk drives (HDD). Currently, however, their operation, particular, comes at cost excessive noise. Here, we present HDD as a tool efficient manipulation single well multiple spins. We show tunable gradients up 100 {\mu}T/nm can be used spectrally address on nanoscale. Their GHz Bandwidth allows switch within nanoseconds, faster than characteristic timescales such Rabi Larmor periods, spin-spin couplings or optical transitions, thus extending set feasible spin manipulations. drive transitions through non-adiabatic passages enable readout states strong misaligned fields. Building these techniques, further apply large field microwave selective addressing its use colocalization two emitters.