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Magnetic and Magnetostrictive pProperties in Amorphous (Tb0.27Dy0.73)(Fe1-xCox)2 Films

Duc, N.H. and Mackay, K. and Betz, J. and Givord, D. (2000) Magnetic and Magnetostrictive pProperties in Amorphous (Tb0.27Dy0.73)(Fe1-xCox)2 Films. Journal of Applied Physics, 87 (2). pp. 834-839.

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Magnetic and magnetostrictive properties have been investigated for amorphous (Tb0.27Dy0.73)(Fe1-xCox)2 thin films. An increase in the 3d magnetic moment due to the enhancement of T–T interactions in substituted (Fe, Co) alloys was found. This leads to stronger R–(Fe, Co) exchange energies and then to enhancements of R–sublattice magnetization as well as magnetostriction in these amorphous R(Fe, Co) thin films. In addition, a well-defined in-plane anisotropy is created by magnetic-field annealing for the Co-rich films. A large magnetostriction of 480×10-6 developed in low fields of 0.3 T was observed for films with x=0.47 after magnetic-field annealing. The differing roles of Fe and Co atoms on the magnetization process have also been discussed. © 2000 American Institute of Physics.

Item Type: Article
Uncontrolled Keywords: amorphous magnetic materials;cobalt alloys;dysprosium compounds;exchange interactions (electron);iron alloys;magnetic anisotropy;magnetic annealing;magnetic moments;magnetic thin films;magnetisation;magnetostriction;terbium alloys;7530Cr;7530Et;7530Gw;7550Kj;7560Ej;7560Nt;7570Ak;7580+q;8140Gh;8140Rs
Subjects: ?? Nano ??
Divisions: Faculty of Engineering Physics and Nanotechnology (FEPN)
Depositing User: Prof. Xuan-Tu Tran
Date Deposited: 27 Mar 2013 06:28
Last Modified: 01 Apr 2013 06:58

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