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SQUID Magnetometer – Quantum Design MPMS®3

SQUID Magnetometer

Quantum Design MPMS®3

Quantum Design's MPMS 3 represents the culmination of more than 30 years of development and design in the world of SQUID Magnetometry. Providing 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 ≤10-8 emu sensitivity. The award- winning design of Quantum Design's MPMS 3 also provides expanded software functionality within its user-friendly MultiVu interface. 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

  • SQUID Sensitivity
  • 7 Tesla Magnet with QuickSwitch™ technology
  • Maximum ramp rate: 700 Oe/sec
  • Temperature Range: 1.8 – 400 K with Rapid Temp™
  • 300 to 1.8 K in 25 min. (typical)
  • Multiple measurement modes (DC, VSM and AC Susceptibility)
  • Software controls for the temperature and magnetic field readily enable the automation of complex data acquisition procedures
  • Cryogen Free with EverCool®

DC Measurement Modes

SQUID-VSM

  • < 1 x 10-8 emu (≤ 2,500 Oe), < 8 x 10-8 emu (> 2,500 Oe)
  • 0.1 to 8 mm variable oscillation amplitude enables a large dynamic range
    • > 100 emu maximum moment
  • Rapid data acquisition
MPMS 3 SQUID VSM chart

Traditional DC Scan

  • < 5 x 10-8 emu (≤ 2,500 Oe), < 6 x 10-7 emu (> 2,500 Oe)
  • 10x faster data acquisition as compared to MPMS-XL
  • Ideal for measurements using the Horizontal Rotator, FOSH, Pressure Cell, and Helium-3 Refrigerator
  • 2 emu maximum moment
MPMS 3 Traditional DC Scan

Available Measurement Options

AC Susceptibility

Quantum Design MPMS 3 AC Susceptibility

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

Ultra-Low Field (ULF)

Quantum Design MPMS 3 Ultra-Low Field Option

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

Helium-3 Refrigerator

iQuantum Helium-3 for MPMS 3

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

iQuantum He3 for MPMS 3 Brochure

Oven

Quantum Design MPMS 3 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

AC Resistance (ETO)

Quantum Design MPMS 3 Electrical Transport Option

The Electrical Transport Option (ETO) enables AC resistance measurements of samples using a 4-wire configuration. For samples with higher resistances, a 2-wire 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 up to 5 MΩ in standard 4-wire mode
  • Resistances of 2 MΩ – 1 GΩ can be measured in the high-impedance 2-wire mode
  • 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

Horizontal Rotator

Quantum Design MPMS 3 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 characterize anisotropic samples.

  • Range: up to 360°
  • Step Size: 0.1° (typical)
  • Compatible with traditional DC Scan, AC Susceptibility (<10 Hz), ULF

Fiber Optic Sample Holder (FOSH)

Quantum Design MPMS 3 Fiber Optic Sample Holder (FOSH)

The Fiber Optic Sample Holder (FOSH) enables light to be delivered to the sample space during a measurement.

  • Specialized sample rod and holder transmits a wide spectrum of light
  • Standardized fiber connection ensures compatibility with a variety of light sources
  • Compatible with traditional DC Scan, AC Susceptibility, ULF

Light Sources

TLS120Xe High Power Tuneable Light Source

For experiments requiring illumination inside the MPMS 3 sample space, two broadband xenon light sources are available:

  • The TLX120Xe utilizes a 100 W source and integrates a motorized 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

Light Sources Brochure

Pressure Cell

Quantum Design MPMS 3 High Pressure Cell Main Kit

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

Pressure Cell (Magnetometry) Brochure

Videos

MPMS 3 Webinar

Resources

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