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NV-Diamond Magnetometer Using Electron Irradiation

Published online by Cambridge University Press:  15 January 2013

Edwin Kim,
Victor M. Acosta,
Erik Bauch,
Dmitry Budker and
Philip R. Hemmer
Edwin Kim
Affiliation:
Cypress Semiconductor, 1850 Ramtron Drive, Colorado Springs, CO 80921, USA
Victor M. Acosta
Affiliation:
Hewlett-Packard Laboratories, 1501 Page Mill Road, Palo Alto, CA 94304, USADepartment of Physics, University of California, Berkeley, CA 94720-7300, USA
Erik Bauch
Affiliation:
Department of Physics, University of California, Berkeley, CA 94720-7300, USATechnische Universität Berlin, Hardenbergstrasse 28, 10623 Berlin, Germany
Dmitry Budker
Affiliation:
Department of Physics, University of California, Berkeley, CA 94720-7300, USANuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
Philip R. Hemmer
Affiliation:
Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX 77843-3128, USA
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Abstract

Nitrogen-vacancy (NV) center in diamond is an emerging system for quantum-logic device and sensor applications. The key feature of the NV center is the ability of spin manipulation at room temperature. We apply a wide range of electron irradiation to generate the NV centers in nitrogen-rich diamond for creating best sensitivity. The NV0 and NV─ concentrations in electron irradiated diamond are determined from optical spectra. Additionally, electron spin resonance (ESR) has also proven to be an effective method for probing the electron spin transition between |ms=±1> and |ms=0> states of the NV centers. A study of ESR frequency shift and signal broadening and magnetometer sensitivity as a function of electron irradiation dose has been conducted. The research presented herein is a demonstration of minimum detectable magnetic field tailoring required for future-generation high-sensitivity diamond magnetometry.

Keywords

electron spin resonanceelectron irradiationmagnetic properties

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