Investigation of Near-Surface Defects of Nanodiamonds by High-Frequency EPR and DFT Calculation
arXiv:1906.08354 · doi:10.1063/1.5085351
Abstract
Nanodiamond (ND) hosting nitrogen-vacancy (NV) centers is a promising platform for quantum sensing applications. Sensitivity of the applications using NV centers in NDs is often limited due to presence of paramagnetic impurity contents near the ND surface. Here, we investigate near-surface paramagnetic impurities in NDs. Using high-frequency (HF) electron paramagnetic resonance spectroscopy, the near-surface paramagnetic impurity within the shell of NDs is probed and its g-value is determined to be 2.0028(3). Furthermore, HF electron-electron double resonance-detected nuclear magnetic resonance spectroscopy and a first principle calculation show that a possible structure of the near-surface impurity is the negatively charged vacancy V-. The identification of the near-surface impurity by the present investigation provides a promising pathway to improve the NV properties in NDs and the NV-based sensing techniques.
arXiv comment21 pages, 6 figures
References in corpus (23)
- Quantum ESPRESSO: a modular and open-source software project for quantum simulations of materials
- Advanced capabilities for materials modelling with Quantum ESPRESSO
- High-sensitivity diamond magnetometer with nanoscale resolution
- Magnetometry with nitrogen-vacancy defects in diamond
- A robust, scanning quantum system for nanoscale sensing and imaging
- High-fidelity projective readout of a solid-state spin quantum register
- Room temperature coherent control of coupled single spins in solid
- Scanning magnetic field microscope with a diamond single-spin sensor
- Scalable quantum register based on coupled electron spins in a room temperature solid
- Nanoscale magnetic imaging of a single electron spin under ambient conditions
- Anisotropic interactions of a single spin and dark-spin spectroscopy in diamond
- Magnetic spin imaging under ambient conditions with sub-cellular resolution
- Sub-nanometer resolution in three-dimensional magnetic-resonance imaging of individual dark spins
- Quenching Spin Decoherence in Diamond through Spin Bath Polarization
- Spin relaxometry of single nitrogen-vacancy defects in diamond nanocrystals for magnetic noise sensing
- On the surface paramagnetism of diamond
- Spin Properties of Very Shallow Nitrogen Vacancy Defects in Diamond
- First principles theory of the EPR g-tensor in solids: defects in quartz
- Detection of atomic spin labels in a lipid bi-layer using a single-spin nanodiamond probe
- Controlling the quantum dynamics of a mesoscopic spin bath in diamond
- Spin decoherence and electron spin bath noise of a nitrogen-vacancy center in diamond
- Detecting External Electron Spins Using Nitrogen-Vacancy Centers
- A high-frequency electron paramagnetic resonance spectrometer for multi-dimensional, -frequency and -phase pulsed measurements
Cited by in corpus (7)
- C Hyperpolarization with Nitrogen-Vacancy Centers in Micro- and Nanodiamonds for Sensitive Magnetic Resonance Applications
- Reduction of surface spin-induced electron spin relaxations in nanodiamonds
- DNP-NMR of surface hydrogen on silicon microparticles
- Detection of Electron Paramagnetic Resonance of Two Electron Spins Using a Single NV Center in Diamond
- Engineering diamond interfaces free of dark spins
- Materials and Spin Characteristics of Nanodiamonds Partially Covered with Amino Groups and Embedded with Nitrogen-Vacancy Color Centers
- Generation of spin-squeezed states using dipole-coupled spins