Magnetic Properties Measurement System (MPMS)
Quantum Design MPMS-XL cryogenic magnetometer
MPMS-XL

Specifications:

  • Temperature range: 2.1K - 400K
  • DC Magnetic Field: 0 T - 5 T
  • AC Magnetic Field: 0 - 0.3 mT, <1 - 1,000 Hz
  • Dynamic Range: 10-10 to 10-3 Am2

A more detailed description can be found in IRM Quarterly v. 8, n. 4, Winter 1998-99, while a description of measurement types and data can be found in IRM Quarterly v. 23, n. 3, Fall 2013.

The MPMS is used primarily for magnetic mineral identification based on low-temperature crystallographic transitions (e.g. the Verwey transition in magnetite at about 110 K), and for characterizing particle size distributions, especially for samples containing ultrafine-grained superparamagnetic grains.

For additional information regarding sample preparation see IRM Quarterly v. 6, No. 4, Winter 1996-97.