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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). ISSN 1098-0121

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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:

Date	Event
February 2008	Published

Volume:

Vol.77

Number:

No.8

Number of Pages:

Page Range:

Article no. 081201(R)

Identification Number:

10.1103/PhysRevB.77.081201

Status:

Peer Reviewed

Publication Status:

Published

Access rights to Published version:

Restricted or Subscription Access

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