DC Field Facility

Unique Facilities for Users

User Luisa Chiesa of Tufts University School of Engineering.

Scientist in DC Field Facility

Millikelvin Facility

Lu Li of the University of Michigan in the Millikelvin Facility, which features superconducting magnets providing experimental temperatures as low as 0.02 degrees K.

Scientists in Millikelvin Facility

Measurement Techniques

More than 20 measurement techniques can be done in the facility's resistive, superconducting, hybrid and split magnets.

Diamond anvil cells for high pressure measurements

World-record Magnets

The facility features several unique record-holders, including the powerful 45 tesla hybrid magnet.

45 tesla hybrid magnet

An Active User Program

The DC Field Facility attracts hundreds of users a year. Here Yuanda Gao and Cory Dean conduct a transport experiment on graphene with a 35 tesla magnet.

Scientists using 35 tesla magnet

Located at MagLab headquarters near Florida State University in Tallahassee, the facility offers users the strongest, quietest, steady and slowly varying magnetic fields in the world, coupled with state-of-the-art instrumentation and experimental expertise.

map of Tallahassee, Florida


The facility contains 14 resistive magnet cells connected to a 56 megawatt DC power supply and 15,000 square feet of cooling equipment to remove the heat generated by the magnets. The facility also includes several superconducting magnets operating at millikelvin temperatures. Among these instruments are several record holders, including the 45-tesla hybrid magnet, which offers scientists the strongest continuous magnetic field in the world. The research is supported by magnet plant and cryogenic system operators. Technicians design, build and repair instruments for user research. Scholar-scientists — world-class researchers with their own vibrant research interests — work directly with users to get the best measurements and data.


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

  1. Prepare 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 Tim Murphy with questions.

Latest Science Highlight


  • Magnetic field driven phase transition in underdoped YBCO
    20 November 2015
    Magnetic field driven phase transition in underdoped YBCO

    Just as all matter may exist in the three famous everyday phases — solid, liquid and gas — complex materials may exist in a combination of subtle phases not apparent to the eye. This finding shows that a class of materials, which all contain copper oxide and are known to exhibit a variety of subtle phases, may have even more complexity than thought. And, in fact, some phases are brought about not by changes in temperature but magnetic field.


See more DC Field Science Highlights

Featured Publications

Thermodynamic signature of a magnetic-field-driven phase transition within the superconducting state of an underdoped cuprate, J. B. Kemper, et al., Nature Physics, 10.1038/nphys3502 (2015) See Science Highlight or Read online 

Quantum oscillations in a two-dimensional electron gas in black phosphorus thin films, L. Li, et al., Nature Nanotechnology, 10, 608–613 (2015) See Science Highlight or Read online 

Tunable Symmetry Breaking and Helical Edge Transport in a Graphene Quantum Spin Hall State, A.F. Young, et al., Nature, 505, 528–532 (2014) See Science Highlight or Read online 

Hofstadter's butterfly and the fractal quantum Hall effect in moiré superlattices, C. R. Dean, et al., Nature, 497, 598-602 (2013) See Science Highlight or Read online 

Massive Dirac Fermions and Hofstadter Butterfly in a van der Waals Heterostructure, B. Hunt, et al., Science, 340 no. 6139 pp. 1427-1430 (2013) See Science Highlight or Read online 

See more DC Field publications

For more information contact Facility Director Tim Murphy.

Last modified on 20 November 2015