Non-flipping13C spins near an NV center in diamond - hyperfine and spatial characteristics by density functional theory simulation of the C510[NV]H252cluster
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2018-01-19 |
| Journal | New Journal of Physics |
| Authors | A. P. Nizovtsev, S. Ya. Kilin, A. L. Pushkarchuk, V. A. Pushkarchuk, S.A. Kuten |
| Institutions | Institute for Single Crystals, National Academy of Sciences of Belarus |
| Citations | 39 |
Abstract
Section titled āAbstractāSingle NV centers in diamond coupled by hyperfine interaction to neighboring\n13C nuclear spins are now widely used in the emerging quantum technologies as\nelements of quantum memory adjusted to NV center electron spin qubit. For\nnuclear spins with low flip-flop rate, single shot readout was demonstrated\nunder ambient conditions. Here we report on the systematic search of such\nstable NV-13C systems using density functional theory (DFT) to simulate\nhyperfine and spatial characteristics of all possible NV-13C complexes in the\nH-terminated cluster C510 [NV]-H252 hosting the NV center. Along with the\nexpected stable NV- axial 13C systems wherein the 13C nuclear spin is located\non the NV axis, we found for the first time new families of positions for the\n13C nuclear spin exhibiting negligible hyperfine-induced flipping rates due to\nnear-symmetric local spin density distribution. Spatially, these positions are\nlocated in the diamond bilayer passing through the vacancy of the NV center and\nbeing perpendicular to the NV axis. Analysis of available publications showed\nthat, apparently, some of the predicted non-axial near-stable systems NV-13C\nhave already been observed experimentally. A special experiment done on one of\nthese systems confirmed the prediction made\n