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This service is aimed at companies developing new spintronic devices and manufacturers assessing the magnetic properties of materials in production. It will also be of interest to researchers and universities studying fundamental magnetic properties. NPL offers a range of services aiming to help solve some of the following problems:
NPL has several specialised techniques allowing characterisation of devices and materials’ magnetic properties on the nanoscale. We offer consultancy services using a range of state-of-the-art techniques.
Read the recent article about NPL’s work in this area: Magnetic Force Microscopy: Comparison and Validation of Different Magnetic Force Microscopy Calibration Schemes
Find out more about NPL's Magnetics product and services
Find out more about NPL's Advanced materials product and services
Find out more about NPL's Low-loss electronics research
Standard magnetic force microscopy (MFM) provides qualitative mapping of a sample’s magnetic stray field at the surface. Nanoscale characterisation of magnetic fields is important for fundamental and applied research on magnetic materials and devices. It includes:
NPL has developed a new method to offer quantitative MFM measurements which provides quantitative values of the stray field. This unique MFM scanning technique can be combined with other systems and techniques to allow:
NPL’s magnetic property measurement system (MPMS) allows measurements of a sample’s magnetic moment and magnetisation up to 5T and in the temperature range 2-400 K. The technique is suitable for:
NPL’s participation in standardisation of methods for magnetic nanoparticle characterisation allows us to provide measurements using the latest developed protocols, guaranteeing the highest possible degree of repeatability and confidence. Contact us to discuss tests under bespoke conditions.
The magneto-optical Kerr effect (MOKE) system at NPL has a field of view of a few mm down to a resolution of 200 nm, and allows the study of the surface magnetisation of a wide range of samples, with both in-plane and out-of-plane fields. We can examine thin films, magnetic devices, and bulk materials to:
Our magneto-transport measurement system allows measuring in-field electrical properties of magnetic devices, magnetic sensors and materials whose electrical properties are susceptible to magnetic fields. The system operates at room temperature and allows 360° rotation of the sample in the field. Measurements can be performed using both DC and AC currents on the sample up to 100 kHz. This system allows:
NPL experts can provide consultancy in the field of spintronics and quantum materials.
As well as the techniques above, we can help with:
A comprehensive Physical Property Measurement System (PPMS) underpinning the characterisation of future electronic and magnetic devices. With fast cool down times and stable magnetic field ramping, measurement time can be fully utilised reducing the cost to customers. From industry and SME’s to academia, the PPMS is a versatile tool for detailed characterisation of bulk samples, micro and nanofabricated devices, as well as nanoparticles, for developing future quantum and nanoelectronics technologies.
The DynaCool PPMS’s flexible design combines many features in one instrument, including magnetometry and electrical transport measurements as well as ferromagnetic resonance spectroscopy. The system can work in a wide range of magnetic fields (up to 9 Tesla) and temperatures down to 1.8K with no need for liquid cryogens (cryogen-free) resulting in significantly reduced running costs compared with traditional wet cryogenic systems.
Vibrating Sample Magnetometer (VSM)
The VSM option enables measurement of a sample's magnetic moment as a function of temperature or magnetic field.
The AC measurement system utilizes a mutual induction-based technique to determine a sample's dynamic (AC) susceptibility.
The electrical transport option enables AC electrical transport measurements of samples using a 4-probe lead configuration, suitable for all ranges of samples, but especially useful for looking at resistive samples, or those where pulsed current measurements could be utilised such as when studying memristors.
The PPMS can measure DC resistance on up to three channels using a standard puck. This option highlights the efficiency of this system, with data for full temperature and field sweeps of three samples taken simultaneously, reducing the time cost even further.
Broadband FMR spectroscopy utilising the NanOsc CryoFMR-40 allows for dynamic property measurements up to 40 GHz. FMR over such a wide frequency range enables the extraction a variety of magnetic parameters, several which are traditionally inaccessible by static measurement techniques, as well as extracting parameters which can be correlated with those derived from static measurements. From FMR we can extract;
All of these are crucial in developing materials for integration into next-generation Low Loss Electronics.
Removing barriers to innovation
Announcing a new programme to support the UK quantum industry through access to specialist science and engineering advice and facilities.
Our research and measurement solutions support innovation and product development. We work with companies to deliver business advantage and commercial success. Contact our Customer Services team on +44 20 8943 7070