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

  • Controlled Under Pressure: Exchange Anisotropy in Organic Magnets
    10 April 2015
    Controlled Under Pressure: Exchange Anisotropy in Organic Magnets

    MagLab users have employed a combination of ab-initio theory and a newly developed high-pressure, high-field ferromagnetic resonance technique, which is uniquely sensitive to anisotropic magnetic interactions, to gain insights into the importance of spin-orbit coupling effects in a range of organic materials where this effect is usually considered to be small. The findings may be applicable to topics as diverse as spintronics and topological spin phases.

See more EMR Science Highlights

Featured Publications

Pressure dependence of the exchange anisotropy in an organic ferromagnet

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

Magnetic Ordering and Anisotropy in Heavy Atom Radicals

Stephen, M.W., 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 27 August 2015