Magnetic Property Measurement System
Quantum Design MPMS3 (S/N MPMS3-193)
Contact: mtim@mit.edu

Measurement Modes: DC, AC, VSM
VSM - Vibrating Sample Magnetometry is a fast and sensitive technique to determine a sample's magnetic dipole moment. The moment arises from the material's magnetization density which is a fundamental thermodynamic quantity. This tool can be used to study phenomena such as superconductivity, ferromagnetism, superparamagnetism and magnetic frustration.

Links:
Standard Operating Procedure
Quantum Design
Quantum Design Document Library
MPMS3 Introduction Video

Specifics:

SQUID Sensitivity: ~1 x 10-8 EMU, (4nanograms of Iron = 1micro EMU signal)
Temperature Range: 1.8 to 400K, (1.8K in ~20min, Stable in ~5min)
Magnet: 7 Tesla (70,000 Oe)
Ramp Rates: 4Oe/s - 700Oe/s
Field Uniformity: 0.01% across 4cm
Linear Transport Motor:
10um Resolution (Optical Encoder)
Vibrational Amplitude: 0.5mm - 8mm
DC Scan Length: 3cm - 6cm, Variable Scan Speed: 1sec - 15sec
Sample Chamber Length: ~80cm
Measurement Modes: DC, VMS, AC

DC vs VSM:

Options:
AC Susceptibility
Electrical Transport
Oven
Magneto Optic Measurement
Horizontal Rotator
Ultra-Low Field
Fiber Optic Sample Holder

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Old (Retired) MPMS Systems: DC, AC, XL, VMS