NIST researchers are developing advanced magnetic material standards and measurement techniques to support quantum computing and other emerging technologies. Key developments include:
1. Magnetic moment and susceptibility standards: NIST has developed new standards for measuring magnetic properties of materials, including nickel spheres, disks, and platinum cylinders. These standards will help ensure accurate measurements in quantum computing and other applications.
2. Magnetic nano-objects for temperature measurement: Researchers are developing magnetic nano-objects that can be used as SI-traceable thermometers for remote temperature measurements, with potential applications in quantum computing and other fields.
3. Magneto-caloric materials for efficient refrigeration: NIST is working on new magneto-caloric materials and instrumentation that could enable more efficient and environmentally friendly magnetic refrigeration systems, particularly for quantum computing applications.
4. Improved measurement reproducibility: Researchers have developed new methods to improve the reproducibility of magnetic measurements, particularly for second-order gradiometer configurations used in magnetometers. This will help ensure consistent and accurate measurements in quantum computing and other applications.
5. Understanding magnetic interactions in nanoparticle dispersions: NIST researchers have studied the magnetic interactions and behavior of different types of iron oxide nanoparticles, which could help optimize their use in quantum computing and other applications.
6. Improved magnetic refrigeration materials: NIST has developed new heat-treated Ni45Mn40Co5Sn10 ribbon samples that require up to 3 T less magnetic field for magnetic refrigeration, potentially improving the efficiency of quantum computing cooling systems.
These developments will help support the growth of quantum computing and other advanced technologies by providing accurate, reliable, and reproducible magnetic measurements and materials.
Source: https://www.nist.gov/programs-projects/metrology-magnetic-materials
Keywords: magnetism, magnetic, nanoparticles, magnetocaloric, entropy
