Quantum behaviour of hydrogen and muonium in vacancy-containing complexes in diamond.
Journal of Physics Condensed Matter
Most solid-state electronic structure calculations are based on quantum electrons and classical nuclei. These calculations either omit quantum zero-point motion and tunnelling, or estimate it in an extra step. Such quantum effects are especially significant for light nuclei, such as the proton or its analogue, μ+. We propose a simple approach to including such quantum behaviour, in a form readily integrated with standard electronic structure calculations. This approach is demonstrated for a number of vacancy-containing defect complexes in diamond. Our results suggest that for the NHV- complex, quantum motion of the proton between three equivalent potential energy minima is sufficiently rapid to time-average measurements at X-band frequencies.
|Title:||Quantum behaviour of hydrogen and muonium in vacancy-containing complexes in diamond|
|Open access status:||An open access version is available from UCL Discovery|
|Additional information:||Text made available to UCL Discovery by kind permission of IOP Publishing, 2012|
|UCL classification:||UCL > School of BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Physics and Astronomy
UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry
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