News
Chaos generated with a nanoscale magnetic vortex
Magnetic vortices are nanoscale whirls that gyrate like spinning tops, tracing out paths in a clockwise or counter-clockwise manner in nanometre-thick materials. Under certain conditions, this sense of gyration can flip repeatedly, resulting in complex patterns of behaviour. Now, …
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Direct mapping of the electronic coupling between two self-assembled quantum dots
Thanks to an advanced technique of scanning tunnelling microscopy and spectroscopy (STM/STS), a team of researchers at C2N was able to observe the electronic coupling of a pair of quantum dots using simultaneous imaging of morphology and electronic density …
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Nanoporous germanium for cheaper multi-junction solar cells
News released (in French) by the Institut des Sciences et de l’Ingénierie des Systèmes (INSIS) of CNRS on 25 November 2019 Despite their excellent energy performance, some solar panels are still too expensive to be used widely. …
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A compact optomechanical gigahertz oscillator made of a piezoelectric III-V semiconductor
A team of physicists at C2N and Thalès Research and Technology have demonstrated an optomechanical oscillator, based on an ultra-compact bichromatic one-dimensional crystal, able to operate at 3 GHz at room temperature. Oscillators are devices able to produce …
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Mimicking potentials for acoustic-phonons by shaping their propagation through a nanoengineered structure
In a theoretical work, a team of researchers at C2N has proposed a novel nanoengineered approach to manipulate the way acoustic-phonons travel through a periodic structure. They have demonstrated that their phononic platform allows studying a variety of potentials …
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