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Microstat MO

The MicrostatMO2 is a compact stable cryostat, which provides a cryogenic environment (6 K) ideal for sensitive optical and electrical measurements in magnetic field (up to 5 T). All these advantages in a single cryostat...

Wide sample temperature range from 6 K to 300 K
Magnetic field up to 5 T, satisfying the majority of spectroscopy applications
Low vibration and drift: typically 4 nm/min
Low sample vitration: <20 nm typical
Short working distance of 8.5mm enabling the use of high magnification optics
Can be orientated horizontally or vertically, providing flexibility for setting-up the experiment
Designed for easy integration of optical components on the cryostat top plate
Can be used for reflection and transmission measurements
Minimum downtime: conventient continuous optieration including improved 300 K operation
Quick sample change using a demountable sample holder.  Two options are available: a copper sample platform for lower base temperature or a sapphire platform for optical transmission measurements
System can be cooled using a pressurised liquid helium dewar for convenient operation with minimum vibration. Mounting bracket supplied to clamp the cryostat to the bench, thus reducing vibrations introduced by the transfer tube.

Specification:

  • Maximum magnetic field at sample position 5 T
  • Magnetic field stability in persistent mode (switch included)  0.01 %/hr
  • Magnetic field homogeneity 2% over 5 mm diameter spherical volume
  • Maximum magnetic fie ld sweep rate 1.0 T/min
  • Temperature range on the sample heat exchanger 6 K to 300 K measured with pressurised LHe storage dewar, 5 K achieved with RV12 pump (option)
  • Temperature range on a demountable copper sample holder (standard) 7 K to 300 K measured with pressurised LHe storage dewar, 6 K achieved with RV12 pump (option)
  • Temperature range on a demountable sapphire sample holder (option), 8 K to 300 K measured with pressurised LHe storage dewar, 7 K achieved with RV12 pump (option)
  • Temperature stability ± 0.1 K measured over 10 minutes
  • Typical cool-down time from room temperature to 6 K 4 hours
  • Typical average liquid helium consumption at 6 K 2 litres per hour
  • Typical liquid helium consumption per day 25 litres, based on 10 hours of operation and including two complete sample changes

Applications:

Microscopic optical measurements, such as Photoluminescence and Raman scattering under varying magnetic field. Study of microstructures such as quantum dots / wires / wells and nanostructured semiconductor devices.
Flux visualisation of superconducting materials. 5T magnetic field extends the range of samples that may be studied to include materials with strong flux pinning.
Electrical transport measurements using very small currents for nanoscale samples, quantum devices and nano-devices.
Measurement of dimensional changes of magneto-restrictive materials.

Download PDF datasheet – Microstat MO

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