Our partner Lake Shore Cryotronics

M91 FastHall Measurement Controller

From Lake Shore Cryotronics

The MeasureReady M91 is a all‑in-one Hall analysis instrument. It features Lake Shore’s new FastHall measurement technique. The M91 eliminates the need to switch the polarity of the applied magnetic field during the Hall effect measurement. As a result, you will get faster and more accurate measurements, especially when using high field superconducting magnets or when measuring very low mobility materials.

  • All-in-one instrument
  • Provides complete Hall analysis
  • Improves accuracy by minimizing thermal drift
  • Use with any type of magnet

Further information

The M91 grows as your measurement needs evolve, as with free online software updates, your instrument can always have the most current capabilities. And as Lake Shore introduces new options in the future, you can purchase and download them to your instrument.

The M91 is extremely fast, reducing analysis time in some cases by 100×. Most commonly measured materials can be analyzed in a few seconds. Even extreme high resistance (up to 200 GΩ) or low mobility (~0.001 cm2/V s) samples can generally be analyzed in under 2 min. With other HMS techniques, this could take hours to complete.

The M91 encourages rapid initial assessments of materials to determine if further study or greater accuracy is warranted. Spend less time waiting and more time doing real science.

Analysis of low mobility or high resistance materials faces challenges due to very low signal-to-noise ratios. Inaccurate measurements are likely unless sophisticated techniques and/or larger measurement samples are used.

With some HMS solutions, the researcher often has little chance to double check the intermediate results of the analysis and can therefore be easily misled as to the validity of the reported results.

The M91 collects all the data. In addition to performing the complete Hall analysis and outputting the usual measured and derived mobility values, the M91 can also generate detailed reports including all the supporting intermediate data, so the researcher can readily confirm the integrity of the results.


M91 FastHall™ measurement controller

  • Hall analysis including van der Pauw and Hall bar samples
  • Eliminates the need for magnetic field reversal
  • Extended mobility range down to 0.001 cm2/V s
  • Automatic optimization of excitation values and measurement range
  • Manual step-by-step mode for full parameter control
  • High-resistance option to 200 GΩ
  • Outputs all measured values plus derived parameters


M91 FastHall Measurement Controller
M91 Fast-Hall analysis kit for PPMS


M91 FastHall™ Measurement Controller First Look
MeasureLINK MCS - 1: Basic Tour
MeasureLINK MCS - 2: Sequence Pane
MeasureLINK MCS - 3: Making Measurements and Displaying Results
MeasureLINK MCS - 4: Building the UI and Registering Scripts
MeasureLINK MCS - 5: Basics of Scripting


Dr. Marc Kunzmann
Dr. Marc Kunzmann
Matthias Müller
Matthias Müller


Quantum Design GmbH

Breitwieserweg 9
64319 Pfungstadt

Phone:+49 6157 80710-0
Fax:+49 6157 807109
Dr. Marc KunzmannProduct Manager - Cryogenics & Materials science
+49 6157 80710-46
Write e-mail

Matthias MüllerProduct Manager - Cryogenics & Materials science
+49 6157 80710-554
Write e-mail