Part of the Oxford Instruments Group


A magneto-optical Cryofree® superconducting magnet system. 

  • 7 T magnetic field in a compact geometry

  • Integrated variable temperature insert providing sample temperatures between 1.6 and 300 K

  • Excellent optical access in the horizontal plane, both parallel and perpendicular to the magnetic field

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SpectromagPT is a split pair, horizontal field magneto-optical Cryofree superconducting magnet system. It provides optical access to a sample in a variable magnetic field and low temperature environment.

  • 7 T magnetic field in a compact geometry

  • The sample can be changed while the system is cold. No need for a complicated load-lock mechanism

  • Sealed circulation loop reduces the risk of contamination and blockages, increasing the continuous running period of this system

  • Excellent optical access in the horizontal plane (both parallel and perpendicular to the magnetic field)

  • Uses the highest specification magnet superconducting wire available on the market and advanced construction techniques to ensure
    ultimate performance and reliability

  • 1 year standard warranty

Flexible: Wide range of experimental inserts to suit many applications

Fast experiment: Quick sample change via top-loading probe

Optical excellence: Excellent optical access in the horizontal plane, both parallel and perpendicular to the magnetic field

Easy to use: Enables full sample rotation for measurements

Temperature range: 1.6 K to 300 K

Standard sample probe temperature stability: ± 0.1 K

System cooldown: ~ 40 hours from room temperature to 4 K

Standard sample probe cooldown: ~ 90 minutes from room temperature to < 5 K (probe loaded into cold variable temperature insert)

Continuous system operation: Typically > 4 weeks

Magnet ramp to full field: ≤ 60 minutes

Varaible temperature insert sample space diameter: 30 mm nominal

A typical system comprises of:

  • Cryostat
  • Optical Windows
  • Magnet and Power Supply
  • Variable Temperature Insert and Controller
  • Sample Probe
  • Cryocooler and Compressor
  • Accessories and Manuals
  • Magneto circular dichroism
  • Raman spectroscopy
  • Photoluminescence
  • Faraday effect measurements
  • Optical characterisation of nano-devices / quantum dots


Optical Windows

Variable Temperature Inserts




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