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Matteucci effect
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'''Matteucci effect''' is the creation of a helical [[anisotropy]] of the [[magnetic susceptibility]] of a [[magnetostrictive]] material when subjected to a [[torque]]. It is one of the [[magnetomechanical effects]], which is thermodynamically inverse to [[Wiedemann effect]].<ref name="Bozorth1951">{{cite book | last = Bozorth | first = R. | title = Ferromagnetism | publisher = Van Nostrand | year = 1951}}</ref> This effect was described by [[Carlo Matteucci]] 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]] element etymology), with cobalt as main substituent.<ref name="Vazquez1996">{{cite journal | last = Vazquez | first = M. | title = A soft magnetic wire for sensor applications | journal = Journal of Physics D: Applied Physics | volume = 29 | year = 1996| issue = 4 | pages = 939–949 | doi = 10.1088/0022-3727/29/4/001 | s2cid = 250782232 }}</ref><ref name="Matteucci">{{cite journal | last = Matteucci | first = C. | title = Recherches expérimentales sur les phénomènes électromagnétiques développés par la torsion | journal = Annales de Chimie et de Physique | volume = '''53''', 385 | year = 1858}}</ref> == See also == * [[Magnetostriction]] * [[Magnetocrystalline anisotropy]] ==References== {{reflist}} [[Category:Magnetism]] [[Category:Magnetic ordering]]
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