Magnetic, Electrical and Thermal Equipment

Magnetic and Thermal Equipment

Nuclear Magnetic Resonance Lab at Victoria University

Nuclear magnetic resonance is the main technique used in this laboratory to study the molecular dynamics and molecular organisation in soft matter and porous materials. This group comprises a mix of physicists and chemists and our research deals with a wide variety of physical and biophysical systems. The 300, 500 and 600 MHz NMR spectrometers are used primarily for postgraduate research in chemistry. The other two systems, both operating at 400 MHz, funded via the MacDiarmid Institute, are more commonly used to study physical processes such as: a) rheometry to understand the relationship between stress and strain (deformation) or strain rate (flow) in a material and 2) light scattering to study the motion of small particles in suspension.
Please contact Dr. Petrik Galvosas for more information.
Low Temperature Lab at Victoria University

A Closed Cycle Cryostat gives researchers a mini-lab to investigate the low-temperature properties of materials e.g. semiconductors and metals, down to 4 K. There are two types of measurements available: temperature dependent resistivity and photoconductivity. the facilities are particularly suited to high resistance measurements. Another setup allows one to measure resistivity down to liquid nitrogen temperature.
Please contact Ben Ruck for more information.
Magnetic Lab at IRL

With a SQUID Magnetometer and a PPMS setup, IRL proposes world-class tools to study the magnetic properties in materials. The SQUID allows you to measure the strength and direction of magnetic field in a material and thus to determine properties such as magnetic susceptibility, superconductivity onset…. One of the greatest features of the SQUID is its supposed sensitivity – 10^-7 to 10^-8 emu. The temperature range is 3K-380K and 300K-800K (with the oven option) with magnetic field up to 7T. The magnetic state of the material can be also studied with the PPMS. With this system you will measure magneto-resistance, the Hall effect and magneto-thermo power. The temperature range of the PPMS is ~3K to 380K, with magnetic fields up to 9T. With this technique measurements such as electrical and thermal conductivity and specific heat can be performed.

Please contact Grant Williams for more information.
Magnetic Lab at UO

Mössbauer and electron paramagnetic resonance spectroscopies are the main techniques used in this lab to provide information about the magnetic properties of a large range of compounds such as nanoparticles, superconductors, biological tissues and even sea water. Mossbauer spectroscopy can be performed between room temperature and 4.6K. It is a very sensitive tool for measuring the spin state and oxidation state of specific atoms in a material. EPR is a technique for studying compounds that have one or more unpaired electrons, such as organic and inorganic free radicals or inorganic complexes possessing a transition metal ion. This spectroscopy can also be performed at different temperatures.

Please contact Guy Jameson for more information.

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