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

Infrared / Terahertz Magneto Optics in DC Fields

Bruker FTIR spectrometers are coupled to SCM3 and resistive magnet in cell 8.

IR transmission (reflectance) measurements can be carried out in magnetic fields up to 35T (17.5T). With a variety of detectors, beamsplitters and light sources, the frequency range of 10-6,000 cm-1 (far-IR to mid-IR) can be covered in magnetic fields, with a resolution better than 0.03 cm-1. Measurements are available in the Faraday geometry (magnetic field perpendicular to the sample) at a temperature range of 4.2-8 K at SCM3 and at 4.2 K in cell 8. Four samples can be loaded to the sample probe in one cool-down in SCM3 (17.5 T magnet) for both transmission and reflectance experiments, whereas one sample can be measured for one cool-down in 35 T magnet in cell 8 for transmission experiments. Typically the relative noise-to-signal ratio can be lower than 0.1%, which varies with the transmission and reflectance signals from samples. New capabilities of IR measurements are being developed besides those described above. Please contact Zhiqiang (Jason) Li for updates.


Compatible Magnets

Resistive Magnets

Superconducting Magnets

  • Bruker vertex 80v IR spectrometer
  • Bruker 66v IR spectrometer
  • Bruker 113v IR spectrometer

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Images & Sample Data

Credit: National MagLab

Related Publications

T. V. Brinzari, et al, Electron-Phonon and Magnetoelastic Interactions in Ferromagnetic Co[N(CN)2]2, Phys. Rev. Lett. 111 (2013) Read online.

T. V. Brinzari, et al, Quantum Critical Transition Amplifies Magnetoelastic Coupling in Mn[N(CN)2]2, Phys. Rev. Lett. 110 (2013) Read online.

J. M. Poumirol, et al, Magnetoplasmons in Quasineutral Epitaxial Graphene Nanoribbons, Phys. Rev. Lett. 110 (2013) Read online.

Hugen Yan, et al, Plasmonics of coupled graphene micro-structures, New Journal of Physics, 14, 125001 (2012) Read online.

Hugen Yan, et al, Infrared spectroscopy of tunable Dirac terahertz magneto-plasmons in graphene, Nano Lett. 12, 3766 (2012) Read online.

E. Henriksen, et al, Interaction-Induced Shift of the Cyclotron Resonance of Graphene Using Infrared Spectroscopy, Phys. Rev. Lett. 104, 067404 (2010) Read online.

E. A. Henriksen, et al, Cyclotron Resonance in Bilayer Graphene, Phys. Rev. Lett. 100, 087403 (2008) Read online.

Z. Jiang, et al, Infrared Spectroscopy of Landau Levels of Graphene, Phys. Rev. Lett. 98, 197403 (2007) Read online.

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Last modified on 26 December 2022

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