Matteucci effect is one of the

magnetomechanical effects {{Unreferenced, date=May 2019, bot=noref (GreenC bot) Magnetomechanical effects connect magnetic, mechanical and electric phenomena in solid materials. * Magnetostriction * Inverse magnetostrictive effect * Wiedemann effect * Matteucci effect * ...

, which is thermodynamically inverse to

Wiedemann effect The twisting of a ferromagnetic rod through which an electric current is flowing when the rod is placed in a longitudinal magnetic field. It was discovered by the German physicist Gustav Wiedemann in 1858 . The Wiedemann effect is one of the manif ...

. This effect was described by

Carlo Matteucci Carlo Matteucci (20 or 21 June 1811 – 25 June 1868) was an Italian physicist and neurophysiologist who was a pioneer in the study of bioelectricity. Biography Carlo Matteucci was born at Forlì, in the province of Romagna, to Vincenzo Mat ...

in 1858. It is observable in amorphous wires with helical domain structure, which can be obtained by twisting the wire, or annealing under twist. The effect is most distinct in the so-called 'dwarven alloys' (called so because of the historical

cobalt Cobalt is a chemical element with the symbol Co and atomic number 27. As with nickel, cobalt is found in the Earth's crust only in a chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, pr ...

element etymology), with cobalt as main substituent.

References

{{reflist Magnetism Magnetic ordering

See also

References