Nanoscale Science

Spin Hall nano-oscillators convert DC to magnetic auto-oscillations in the microwave regime. Current research on these and similar devices is dedicated to creating next-generation energy-efficient hardware for communication technologies. Despite intensive research on magnetic auto-oscillations within the past decade, the nanoscale mapping of those dynamics remained a challenge. In consequence, insight could mainly be gained via micromagnetic simulations. Scientists from Max Planck Institute of Solid State  Research in collaboration with University of Stuttgart have shown a first direct experimental measurement of freerunning auto-oscillation in such an oscillator device using the high sensitivity and spatial resolution of a color-center based quantum sensing approach. more

The capability to selectively excite atomic vibrations is crucial to driving and controlling chemistry at the single molecule level. A key parameter to driving vibrations in a molecule is the wavelength of the exciting laser. Until date, rapid re-distribution of excitation energy among various vibration modes made selective excitation very difficult in a complex molecule. By placing a single molecule in an ultralow temperature cavity, the re-distribution of excitation energy in the molecule can be significantly decelerated; enabling researchers from Max Planck Institute for Solid State Research (MPI-FKF Stuttgart) and University of Madrid to selective excite vibrations in single complex molecule. more

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