Electron Magnetic Resonance Facility (EMR)

Staff scientist Hans van Tol with the heterodyne spectrometer. Staff scientist Hans van Tol with the heterodyne spectrometer.

EMR stands for Electron Magnetic Resonance, which covers a variety of magnetic resonance techniques associated with the electron. The most popular of those techniques is Electron Paramagnetic/Spin Resonance (EPR/ESR). In simplified terms, EPR/ESR can be performed on any sample that has unpaired electron spins.

EPR/ESR has proven an indispensable tool in a large range of applications in physics, materials science, chemistry and biology, including studies of impurity states, molecular clusters, antiferromagnetic, ferromagnetic and thin film compounds, natural or induced radicals, optically excited paramagnetic states, electron spin-based quantum information devices, transition-metal based catalysts; and for structural and dynamical studies of metallo-proteins, spin-labeled proteins and other complex bio-molecules and their synthetic models.

To learn more about EMR and the advantages of high frequencies and high fields, visit our EMR Resources section.

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Our magnets are open to all scientists — for free — via a competitive process and we accept proposals throughout the year.

  1. Prepare your documentation
    A proposal and prior results report are required.
  2. Create a user profile
    Returning users simply need to log in.
  3. Submit a request online
    Upload files and provide details about the proposed experiment.
  4. Report your results
    By year’s end, submit a 1-page report and information on publications resulting from your experiment.

Read the User Proposal Policy for complete guidelines or contact Facility Director Steve Hill with questions.

Latest Science Highlight

  • Tweaking molecular structure to tune chemical reactivity
    14 October 2015
    Tweaking molecular structure to tune chemical reactivity

    A recent high-field EPR study by MagLab users from Wayne State and Grand Valley State Universities has demonstrated that minor changes in the periphery of a nickel-containing molecule can lead to a dramatic reorganization of its electron distribution. This in turn, induces a major shift in the reactivity of this compound.

See more EMR Science Highlights

Featured Publications

Pressure dependence of the exchange anisotropy in an organic ferromagnet

Thirunavukkuarasu K., et al., Phys., Rev. B 91, 014412 (2015) See Science Highlight or Read online …

Magnetic Ordering and Anisotropy in Heavy Atom Radicals

Winter, S. M., et al., J. Am. Chem. Soc., 137(11), 3720–3730 (2015) See Science Highlight or Read online …

Influence of Electronic Spin and Spin-Orbit Coupling on Decoherence in Mononuclear Transition Metal Complexes

Zadrozny, J., et al., J. Am. Chem. Soc., 136, 7623-7636 (2014) Read online …

Assigning the EPR Fine Structure Parameters of the Mn(II) Centers in Bacillus subtilis Oxalate Decarboxylase by Site-Directed Mutagenesis and DFT/MM Calculations

Campomanes, P., et al., J. Am. Chem. Soc., 136, 2313−2323 (2014) Read online …

See more EMR publications

For more information contact Facility Director Steve Hill.

Last modified on 20 October 2015