Part of the Oxford Instruments Group
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KelvinoxHA

High performance wet dilution refrigerator for large experiments with many signal lines.
High magnetic fields and low temperatures for hall effect and quantum hall effect measurements.

Electrical Transport Measurements

Low vibration cryogenic environments for sensitive scanning probe measurements.

Scanning Probe Microscopy

Spin processing and data storage studies using high magnetic fields and low temperatures.

Spintronics


Key Specifications

Features

  • Large experimental plates with easily accessible ports for installation of wiring and components.
  • Three line-of-sight ports for installation of up to 6 semi-rigid coaxes per port.
  • Two IVC ports allow electronics to be installed in liquid for improved thermal anchoring.
  • 144 mm diameter mixing chamber plate with 40 mm diameter sample space at field centre.
  • Automated gas handling system with software for data visualisation and remote control.
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Options / Accessories

Choose between a wide range of standard wiring options: twisted pairs of constantan, copper or NbTi for low frequency measurements, flexible stainless steel coaxes for MHz signals, semi-rigid stainless steel coaxes for up to 18 GHz or Thermocoaxes for heavily filtered low-frequency signals. Alternative wiring materials, attenuators and integrated amplifiers are also available on request.

Mechanical rotator with 15 x 15 mm sample space allows for 260 degree polar rotation in high magnetic fields. The rotator assembly below the mixing chamber is demountable to make space for a cold finger when a fixed sample position is preferred. The drive rod from room temperature is retractable to break the thermal connection to the mixing chamber after sample rotation. Automated stepper motor control using MercuryiTC.

Our low-eddy current sample holder with optimized geometry minimizes both sample temperatures during a field sweep and quench forces acting on the refrigerator during a magnet quench.


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