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Quantum Design MPMS 3 Magnetometer
Magnetic Property Measurement System
Quantum Design’s MPMS 3 provides users with the sensitivity of a SQUID (Superconducting Quantum Interference Device) magnetometer and the choice of multiple measurement modes, the MPMS 3 offers new levels of performance in magnetic research while including those aspects of past Quantum Design SQUID magnetometers that customers have grown to appreciate and depend on.
The MPMS 3 incorporates major advances in data acquisition, temperature control and magnetic field control with ≤10-8emu sensitivity. The award- winning design of Quantum Design’s MPMS 3 also provides expanded software functionality within its user-friendly MultiVu interface.
Technical Service and Application Support is available for the Quantum Design products – download the MPMS 3 service plan here
Combining the highest level of system performance with the possibility of using all previously available MPMS measurement options, the Quantum Design MPMS 3 truly represents the next generation of advanced SQUID magnetometry.
FEATURES
- Wet or Cryogen Free versions available
- SQUID Sensitivity
- Multiple Measurement Modes (Including Traditional MPMS DC Scan and VSM)
- Temperature Range: 1.8 – 400 K
- 7 Tesla Magnet
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Options
ULTRA-LOW FIELD (ULF)
The ULF option uses a custom fluxgate field sensor in conjunction with in-situ concentric modulation and trim coils to actively cancel the residual magnetic field in the superconducting solenoid. The option also allows the experimenter to set fields up to +/- 25 Oe.
- Field uniformity: +/- 0.05 Oe
- Field nulling window: +/- 10 mm
- Can be used in conjunction with any measurement mode or sample holder
FIBRE OPTIC SAMPLE HOLDER (FOSH)
The Fibre Optic Sample Holder (FOSH) enables light to be delivered to the sample space during a measurement.
- Specialised sample rod and holder transmits a wide spectrum of light
- Standardised fibre connection ensures compatibility with a variety of light sources
- Compatible with traditional DC Scan, AC Susceptibility, ULF
LIGHT SOURCES
For experiments requiring illumination inside the MPMS 3 sample space, two broadband xenon light sources are available:
- The TLX120Xe utilises a 100 W source and integrates a motorised monochromator such that the light wavelength can be selected using a sequence command in MultiVu
- The MLS 300 W source includes a manual selection filter wheel for passing pre-determined wavelengths of light
AC RESISTANCE (ETO)
The Electrical Transport Option (ETO) enables AC resistance measurements of samples using a 4-probe lead configuration. For samples with higher resistances, a 2-probe high impedance mode is also available. Signals from two channels can be collected simultaneously. An additional voltage pass through allows for voltage-controlled magnetism studies.
- Measure resistances of 10 μΩ – 10 MΩ in a standard 4-probe configuration
- Resistances of 2 MΩ – 5 GΩ can be measured in the high-impedance 2-probe configuration
- Automated I-V curve collection can be used to screen for ohmic contacts
- Differential (dV/dI) resistance measurement mode
- Compatible with traditional DC Scan, SQUID-VSM, AC Susceptibility (<10 Hz), ULF
PRESSURE CELL
The pressure cell option for magnetometry is manufactured by HMD, a leading Japanese supplier of pressure cells. A simplified design requires neither copper sealing rings or a hydraulic press to achieve the maximum available pressure of 1.3 GPa.
- Included manometer materials: tin (Sn) and lead (Pb)
- BeCu construction affords a minimal, uniform magnetic background
- Compatible with traditional DC Scan, AC Susceptibility (<10 Hz), ULF
HELIUM-3 REFRIGERATOR
The iQuantum Helium-3 refrigerator extends the minimum temperature for DC and AC moment measurements below 0.5 K.
- Continuous operation down to 0.5 K
- < 3 hour cooldown time, 10 hours of 3He lifetime
- Compatible with DC Scan and AC Susceptibility measurements
OVEN
The Oven option allows for magnetometry spanning temperatures of 300 – 1000 K. A special alumina sample holder with an integrated resistive heater and temperature sensor locally heat and sense the sample temperature.
- User kit comes standard with high temperature Zircar cement and copper radiation shields for sample mounting
- Moment Sensitivity 1·10-6 emu for H≤2500 Oe and 8·10-6 emu for H>2500 Oe
- Compatible with traditional DC Scan, SQUID-VSM, AC Susceptibility (<10 Hz), ULF
HORIZONTAL ROTATOR
The Rotator enables the magnetometry as a function of angle, spanning a full 360°. A specially designed sample rod and stepper motor allow for automated integration into MultiVu. Three different rotor geometries allow for a variety of sample mounting possibilities to fully characterise anisotropic samples.
- Range: up to 360°
- Step Size: 0.1° (typical)
- Compatible with traditional DC Scan, AC Susceptibility (<10 Hz), ULF
The AC Susceptibility option allows the experimenter to measure the dynamic (real and imaginary) response of a wide variety of samples including, but not limited to, superconductors, nanoparticles, and spin glasses.
- AC Frequency Range: 0.1-1000 Hz
- AC Field Amplitude: 0.1-10 Oe
- Can be used in conjunction with any sample holder
