Tested at BESSY II using a cobalt rod, they demonstrated the potential to supercharge magnetic sensors and imaging tools. This leap in field concentration could pave the way for more sensitive data ...

By using these metamaterials, the sensitivity of magnetic sensors could be highly increased, as the magnetic field to be detected would be amplified at the center of these systems. Mapping ...

These microscopic “magnetic flowers,” made from a nickel-iron alloy, could lead to more powerful sensors ... can control how much the magnetic field is enhanced. Here’s how it works ...

The findings are published in ACS Nano ("On-Chip Planar Metasurfaces for Magnetic Sensors with Greatly Enhanced Sensitivity"). The magnetic microstructure of the nickel-iron alloy leads to a ...

Such a device can be used to increase the sensitivity of magnetic sensors, to reduce the energy ... This flower-shaped geometry causes the field lines of an external magnetic field to concentrate ...

Before Hall Effect sensors became the standard, VRS were the dominant speed sensors in vehicles. They work through electromagnetic induction—as a toothed wheel spins past the sensor, it disrupts the ...

NASA has been monitoring a strange anomaly in Earth's magnetic field: a giant region of lower magnetic intensity in the skies above the planet, stretching out between South America and southwest ...

By using these metamaterials, the sensitivity of magnetic sensors could be highly increased, as the magnetic field to be detected would be amplified at the center of these systems. Anna Palau, her ...