Magnetometers

Magnetometers measure the magnetization and magnetic properties of material. We offer different commercial measurement equipment based on a variety of techniques like SQUID sensor based magnetometer (superconducting quantum interference devices), vibrating sample magnetometers (VSM), torque magnetometers, the magneto-optical Kerr effect, ferromagnetic resonance spectroscopy (FMR) and magnetic hyperthermia instruments. In principle can the sample have any type of magnetic ordering, like diamagnetic, paramagnetic, ferromagnetic, antiferromagnetic, ferrimagnetic, spin glases, etc. A wide range of sample states are suitable e.g. thin films, nanoparticles, liquids, bulk solid.

The MPMS3 (formerly MPMS SQUID VSM) is providing users with the sensitivity of a SQUID (Superconducting Quantum Interference Device) and the choice of multiple measurement modes. 

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AC susceptometry measurement provides information on how fast magnetization is building up in a material. For example, magnetic nanoparticles suspended in a liquid subjected to an alternating magnetic field can show Néel and Brownian relaxation. In case of larger poly-domain material particles, domain-wall motion can be studied. The sum of these effects influences the frequency dependent AC susceptibility of the sample.

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The Vibrating Sample Magnetometers (VSM) of the EZ series are completing LOT-Quantum Design's broad product range of magnetic characterization systems. The magnetic field is provided by an electromagnet with variable gap. The EZ-VSMs are easy to use and offers a high sensitivity.

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The PhaseFMR from NanOsc measures the ferromagnetic resonance of a magnetic thin film sample and derives its fundamental properties from these measurements. The instrument offers an affordable, plug-and-play, and easy to use solution for magnetodynamic measurements. It comes ready with all microwave and detection hardware, as well as measurement and analysis software. The only thing needed is a computer, a magnet, and the power supply for the magnet, which can be delivered by us upon request.

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