Nanoscale Engineering of Closely-Spaced Electronic Spins in Diamond
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2016-07-18 |
| Journal | Nano Letters |
| Authors | Diego Scarabelli, Matt Trusheim, Ophir Gaathon, Dirk Englund, Shalom J. Wind |
| Institutions | Massachusetts Institute of Technology, NBD Nanotechnologies (United States) |
| Citations | 51 |
Abstract
Section titled āAbstractāNumerous theoretical protocols have been developed for quantum information processing with dipole-coupled solid-state spins. Nitrogen vacancy (NV) centers in diamond have many of the desired properties, but a central challenge has been the positioning of NV centers at the nanometer scale that would allow for efficient and consistent dipolar couplings. Here we demonstrate a method for chip-scale fabrication of arrays of single NV centers with record spatial localization of about 10 nm in all three dimensions and controllable inter-NV spacing as small as 40 nm, which approaches the length scale of strong dipolar coupling. Our approach uses masked implantation of nitrogen through nanoapertures in a thin gold film, patterned via electron-beam lithography and dry etching. We verified the position and spin properties of the resulting NVs through wide-field super-resolution optically detected magnetic resonance imaging.