The magnetic field induced strain without prestress and with stress in a polycrystalline Mn–Fe–Cu antiferromagnetic alloy

Zhang, J. H.; Peng, W. Y.; Hsu (Xu Zuyao), T. H.
September 2008
Applied Physics Letters;9/22/2008, Vol. 93 Issue 12, p122510
Academic Journal
In this paper magnetic field induced strain (MFIS) of an antiferromagnetic γMn–Fe(Cu) is investigated. It is discovered that there is a high reversible MFIS of 1.6% with positive strain parallel to applied magnetic field at 3.8 T and ultimate negative strain of -0.15% at 1 T in the same way parallel to applied magnetic field after a precompressive stress (strain). The qualitative analysis of positive strain without prestress and the negative strain with precompressive stress under the same condition of applied magnetic field is discussed.


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