Currently, high-field magneto-Raman experiments can be performed in the back scattering geometry at frequencies >100cm-1. Fiber-based setups are available for magneto-Raman experiments with various DC field magnets, including the 45T hybrid magnet. The same fiber-based probes can be used for other magneto-optical studies (photo-luminescence, photo-conductivity, reflectance). Optical inserts for superconducting magnets and the 31T magnet in cell 9 resistive can be equipped with piezo-positionners allowing for spatially resolved measurements.
Images & Sample Data
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High-field Raman/PL spectroscopy with fiber-based probes.
High-field Raman/PL spectroscopy with fiber-based probes.
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Optical insert for superconducting magnets.
Optical insert for superconducting magnets.
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Optical insert for superconducting magnets.
Optical insert for superconducting magnets.
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Optical insert for 31 tesla magnet.
Optical insert for 31 tesla magnet.
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Raman G peak in graphene exhibiting filling-factor-dependent anticrossings.. Click image for full description.
Raman G peak in graphene exhibiting filling-factor-dependent anticrossings.. Click image for full description.
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Magneto-Raman data revealing charge-lattice-spin coupling in Co[N(CN)2]2.
Magneto-Raman data revealing charge-lattice-spin coupling in Co[N(CN)2]2.
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Polarized magneto-photoluminescence data measured on GaAs/AlGaAs Quantum Hall bilayers at 300mK.
Polarized magneto-photoluminescence data measured on GaAs/AlGaAs Quantum Hall bilayers at 300mK.
![Magneto-Raman data revealing charge-lattice-spin coupling in Co[N(CN)2]2.](/images/users/dc_field/measurement_techniques/magneto_optics_raman/raman_sample3.png "Magneto-Raman data revealing charge-lattice-spin coupling in Co[N(CN)2]2.")
https://nationalmaglab.org/user-facilities/dc-field/dcfield-techniques/raman-dc#sigProIdb79373df0f
Instrumentation
Resistive Magnets
Superconducting Magnets
- 17 Tesla (SCM 3)
- 20 Tesla (SCM 2)
- 14.5T/17T SCM associated with the EMR Transmission Spectrometer)
- Triple stage spectrometer (PI Acton TriVista 557), LN2 cooled CCD
- 0.75m spectrometer (PI Acton SP-2760), LN2 cooled CCD
Related Publications
Brinzari, T.V., et al, Electron-Phonon and Magnetoelastic Interactions in Ferromagnetic Co[N(CN)2]2, Phys. Rev. Lett., 111 (2013) Read online
Kim, Y., et al, Measurement of Filling-Factor-Dependent Magnetophonon Resonances in Graphene Using Raman Spectroscopy, Phys. Rev. Lett., 110 (2013) Read online
Pusep, Yu. A., et al, Circularly Polarized Photoluminescence as a Probe of Density of States in GaAs/AlGaAs Quantum Hall Bilayers, Phys. Rev. Lett., 109 (2012) Read online