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    nanoscience and nanotechnology: small is different

[Physics World] Quantum nanoconfinement effects observed without confinement


The means for exploiting quantum effects in the electronic behaviour of nanoscale materials has been an attractive attribute for next generation devices that is unique to nanomaterials – or is it? Researchers in Madrid, Spain, have now observed the quantization of electron energy levels in copper similar to the effects of confinement within a nanostructure, but in a copper sample with no nanoscale dimensions in the plane of the observed effects.