The Quantum Design MPMS 5XL SQUID uses a Superconducting Quantum Interference Device (SQUID) to monitor very small changes in magnetic flux and so discover the magnetic properties of samples. It is extremely sensitive for all kinds of AC and DC magnetic measurements. The SQUID detects and measures the magnetic momentof the sample. From this the magnetization and magnetic susceptibility can be determined.
Data can be collected for magnetic fields in the range from 0 to ± 50 kOe (from 0 to 5 T) temperatures from 1.8 K to 400 K. The maximum sensitivity of the instrument is in the range of 10-8 emu (10-11) Am2. Samples are typically 20 to 40 mg but strongly magnetic materials must be measured with less material; maximal magnetic moment is 1 emu (10-3 Am2).