Does single pole magnet exist?
The oldest type of magnet is the single-pole-surface magnet. Each side of this type of magnet consists of a single pole. When viewed through Nikken’s exclusive Magna-ViewTM Sensor, this type of magnet looks a lot like an eclipse – a big, black dot with a halo effect around the perimeter.The halo you see is caused by the magnetic field, transitioning from negative to positive, as the flux lines enter the positive pole area on the other side.