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arXiv · 1406.0041

Alignment of the Diamond Nitrogen Vacancy Center by Strain Engineering

Todd Karin·Scott Dunham·Kai-Mei Fu
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Abstract

The nitrogen vacancy (NV) center in diamond is a sensitive probe of magnetic field and a promising qubit candidate for quantum information processing. The performance of many NV-based devices improves by aligning the NV(s) parallel to a single crystallographic direction. Using ab initio theoretical techniques, we show that NV orientation can be controlled by high-temperature annealing in the presence of strain under currently accessible experimental conditions. We find that $(89\pm7)\%$ of NVs align along the [111] crystallographic direction under 2\% compressive biaxial strain (perpendicular to [111]) and an annealing temperature of 970$^\circ$C.

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Todd Karin, Scott Dunham, Kai-Mei Fu. 2014-07-22. Alignment of the Diamond Nitrogen Vacancy Center by Strain Engineering. https://doi.org/10.1063/1.4892544

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