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Title: Nanoscale nuclear magnetic resonance with a 1.9-nm-deep nitrogen-vacancy sensor

We present nanoscale nuclear magnetic resonance (NMR) measurements performed with nitrogen-vacancy (NV) centers located down to about 2 nm from the diamond surface. NV centers were created by shallow ion implantation followed by a slow, nanometer-by-nanometer removal of diamond material using oxidative etching in air. The close proximity of NV centers to the surface yielded large {sup 1}H NMR signals of up to 3.4 μT-rms, corresponding to ∼330 statistically polarized or ∼10 fully polarized proton spins in a (1.8 nm){sup 3} detection volume.
Authors:
;  [1] ; ;  [2]
  1. Department of Physics, ETH Zurich, Schafmattstrasse 16, 8093 Zurich (Switzerland)
  2. Department of Nuclear Solid State Physics, Institute for Experimental Physics II, Universität Leipzig, Linnéstr. 5, D-04103 Leipzig (Germany)
Publication Date:
OSTI Identifier:
22280626
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 3; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; DIAMONDS; ETCHING; HYDROGEN 1; ION IMPLANTATION; NANOSTRUCTURES; NITROGEN; NMR SPECTRA; NUCLEAR MAGNETIC RESONANCE; OXIDATION; PROTONS; SENSORS; SPIN; SURFACES; VACANCIES