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Electron paramagnetic resonance studies of the neutral nitrogen vacancy in diamond
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Felton, S. (Solveig), Edmonds, A. M., Newton, Mark E., Martineau, P. M., Fisher, D. and Twitchen, D. J. (2008) Electron paramagnetic resonance studies of the neutral nitrogen vacancy in diamond. Physical Review B (Condensed Matter and Materials Physics), Vol.77 (No.8). Article no. 081201(R). doi:10.1103/PhysRevB.77.081201
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Official URL: http://dx.doi.org/10.1103/PhysRevB.77.081201
Abstract
Despite the numerous experimental and theoretical studies on the negatively charged nitrogen vacancy center (NV-) in diamond and the predictions that the neutral nitrogen vacancy center (NV0) should have an S=1/2 ground state, NV0 has not previously been detected by electron paramagnetic resonance (EPR). We report new EPR data on a trigonal nitrogen-containing defect in diamond with an S=3/2 excited state populated via optical excitation. Analysis of the spin Hamiltonian parameters and the wavelength dependence of the optical excitation leads to assignment of this S=3/2 state to the (4)A(2) excited state of NV0. This identification, together with an examination of the electronic structure of the NV centers in diamond, provides a plausible explanation for the lack of observation (to date) of an EPR signal from the NV0 ground state.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Divisions: | Faculty of Science > Physics | ||||
| Library of Congress Subject Headings (LCSH): | Electron paramagnetic resonance, Diamonds -- Electric properties, Diamonds -- Defects, Nitrogen, Charge transfer | ||||
| Journal or Publication Title: | Physical Review B (Condensed Matter and Materials Physics) | ||||
| Publisher: | American Physical Society | ||||
| ISSN: | 1098-0121 | ||||
| Official Date: | February 2008 | ||||
| Dates: |
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| Volume: | Vol.77 | ||||
| Number: | No.8 | ||||
| Number of Pages: | 4 | ||||
| Page Range: | Article no. 081201(R) | ||||
| DOI: | 10.1103/PhysRevB.77.081201 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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