A magnetic charge can behave and interact in a way similar to electric charge in some materials, new research indicates. It also demonstrates a perfect symmetry between electricity and magnetism - 'magnetricity'. This will lead to a reassessment of the current theories of magnetism.
In order to experimentally prove the existence of magnetic current by applying a magnetic field to a spin ice sample at a low temperature.
Reference:
S. T. Bramwell, S. R. Giblin, S. Calder, R. Aldus, D. Prabhakaran & T. Fennell. Measurement of the charge and current of magnetic monopoles in spin ice. Nature, 2009; 461 (7266): 956 DOI: 10.1038/nature08500
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