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Title: Significant deterioration of energy products in exchange-coupled composite magnets
Authors: Xia, J.
Zhao, G.P.
Zhang, H.W.
Cheng, Z.H.
Feng, Y.P. 
Ding, J. 
Yang, H.T.
Issue Date: 1-Jul-2012
Citation: Xia, J., Zhao, G.P., Zhang, H.W., Cheng, Z.H., Feng, Y.P., Ding, J., Yang, H.T. (2012-07-01). Significant deterioration of energy products in exchange-coupled composite magnets. Journal of Applied Physics 112 (1) : -. ScholarBank@NUS Repository.
Abstract: Hysteresis loops and energy products have been calculated reliably for a hard/soft/hard trilayer system with a deviation of easy axis β taken into account, which affects the coercivity significantly, and hence leads to much smaller energy products than those predicted by the previous theory. Such a deterioration is much sharper than the corresponding fall for a single-phased material and a 30° deviation of in-plane easy axis could result in a drop of the maximum energy product by more than 60. Consequently, the advantage of the composite phase can be realized only when the material is well oriented, which offers a possible explanation to the large discrepancy between the experimental and theoretical energy products. © 2012 American Institute of Physics.
Source Title: Journal of Applied Physics
ISSN: 00218979
DOI: 10.1063/1.4736438
Appears in Collections:Staff Publications

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