Electron spin resonance shift and linewidth broadening of nitrogen-vacancy centers in diamond as a function of electron irradiation dose

Journal Article · Mon Aug 20 00:00:00 EDT 2012 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4747211· OSTI ID:22089395

Kim, Edwin ^[1]; Acosta, Victor M. ^[2]; Bauch, Erik ^[3]; Budker, Dmitry ^[3]; Hemmer, Philip R. ^[4]

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1. Ramtron International Corporation, 1850 Ramtron Drive, Colorado Springs, Colorado 80921 (United States)
2. Hewlett-Packard Laboratories, 1501 Page Mill Road, Palo Alto, California 94304 (United States)
3. Department of Physics, University of California, Berkeley, California 94720-7300 (United States)
4. Department of Electrical and Computer Engineering, Texas A and M University, College Station, Texas 77843-3128 (United States)

A high-nitrogen-concentration diamond sample was subjected to 200-keV electron irradiation using a transmission electron microscope. The optical and spin-resonance properties of the nitrogen-vacancy (NV) color centers were investigated as a function of the irradiation dose up to 6.4 Multiplication-Sign 10{sup 21} e{sup -}/cm{sup 2}. The microwave transition frequency of the NV{sup -} center was found to shift by up to 0.6% (17.1 MHz) and the linewidth broadened with increasing electron-irradiation dose. Unexpectedly, the measured magnetic sensitivity is best at the lowest irradiation dose, even though the NV concentration increases monotonically with increasing dose. This is in large part due to a sharp reduction in optically detected spin contrast at higher doses.

• OSTI ID: 22089395
• Journal Information: Applied Physics Letters, Vol. 101, Issue 8; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COLOR CENTERS
CRYSTALS
DIAMONDS
ELECTRON BEAMS
ELECTRON SPIN RESONANCE
ELECTRONS
KEV RANGE 100-1000
LINE BROADENING
MICROWAVE RADIATION
NITROGEN ADDITIONS
PARAMAGNETISM
PHOTOELECTRON SPECTROSCOPY
RADIATION DOSES
SENSITIVITY
SPIN
TRANSMISSION ELECTRON MICROSCOPY