Magnetization and magnetostriction studies of TbFeCo/YFeCo multilayers |
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| Authors: | D T Huong Giang N H Duc J Juraszek J Teillet |
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| Institution: | (1) Groupe de Physique des Matériaux, Université de Rouen, UMR CNRS 6634, 76801 St Etienne du Rouvray, France;(2) Faculty of Physics, Vietnam National University, Hanoi, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam;(3) College of Technology, Vietnam National University, Hanoi, 144 Xuan Thuy Road, Hanoi, Vietnam |
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| Abstract: | Exchange-spring TbFeCo/YFeCo multilayers exhibit interesting magnetic and magnetostrictive properties that are rather promising
for application in microsystems. In this paper, we present a study of the effect of the exchange coupling on the magnetic
properties of these magnetostrictive multilayers. An exchange bias phenomenon, revealed by a shift of the minor hysteresis
loop along the applied field axis, is found as the result of the creation of interfacial domain walls. This effect strongly
depends on the magnetic properties of the soft YFeCo layer, and becomes more pronounced at low temperatures due to the enhancement
of the magnitude of the exchange coupling between the layers. |
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| Keywords: | RE– MT multilayers magnetostriction magnetization process microstructure M?ssbauer |
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