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The MagLab is funded by the National Science Foundation and the State of Florida.

Electron Magnetic Resonance Facility

EMR user on HiPER System

Electron Magnetic Resonance hosts a variety of magnetic resonance techniques associated with the electron.

The EMR Facility provides unique instruments for Electron Magnetic Resonance studies of paramagnetic centers, magnetic molecules, and magnetic materials at very high magnetic fields and frequencies.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.

This facility provides researchers with 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.

EMR Numbers

7 Spectrometers

10 Measurement Techniques

Expert User Support Scientists

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Located at Florida State University in Tallahassee, FL.

Featured Research

Science Highlights


Terahertz EPR Spectroscopy in the High-Homogeneity 36T Series-Connected Hybrid Magnet

Dubroca, T.; Wang, X.; Mentink-Vigier, F.; Trociewitz, B.; Starck, M.; Parker, D.; Sherwin, M.S.; Hill, S.; Krzystek, J., Journal of Magnetic Resonance, 353, 107480 (2023)

Read the Science Highlight or check out the full publication online.

Left: Magnetic field-swept pulsed electron echo-detected (ED) spectrum of a reactive, short-lived state of Mn/Fe R2lox after binding oxygen. Right: Detailed structure of the “R2lox” metalloprotein

Tuberculosis Metalloproteins Probed With High-Field Electron Magnetic Resonance

Kisgeropoulos, E.C.; Gan, Y.J.; Greer, S.; Hazel, J.M.; Shafaat, H.S., Journal of the American Chemical Society, 144 (27), 11991-12006 (2022)

Read the Science Highlight or check out the full publication online.

Pulsed electron spin-echo spectra recorded at 94GHz and 5K, for the three compounds shown.

A Quantum Development: Massive Hyperfine Interaction in a Lu(II) Qubit

Kundu, K.; White, J.R.K.; Moehring, S.A.; Yu, J.M.; Ziller, J.W.; Furche, F.; Evans, W.J.; Hill, S., Nature Chemistry, 14, 1-6 (2022)

Read the Science Highlight or check out the full publication online.

Peer-Reviewed Publications

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How to Request Magnet Time

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

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Prepare documentation

A proposal and prior results report are required.

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Create a user profile

New user registration, returning users simply need to log in.

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Submit a request online

Upload files and provide details about the proposed experiment.

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Report your results

After your work is completed, you are asked to report to the laboratory, in a timely manner.

Note: There are no deadlines or time windows for EMR proposals.

Key Contacts

Stephen Hill

User Program Director

For information regarding the facility's User Program.

Jurek Krzystek

Deputy Program Director

For information regarding requesting magnet time or proposal content

Andrew Sapronetti

User Program Administrative Coordinator

For information regarding submitting a proposal and inquiries related to the EMR group

Fellow users who are experts on the use of EMR Facility are also available to answer questions.
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