EFFECT OF ANNEALING ON CRYSTALLINE STATE AND MAGNETIC PROPERTIES OF (Tb0.28Dy0.72)Fe1.90 THIN FILMS
Giant magnetostrictive (Tb0.28Dy0.72)Fe1.90 thin films were deposited on Si(111) substrates at room temperature by pulsed laser deposition (PLD). The crystalline state and the magnetic properties of the samples were investigated in relation to the different annealing temperatures Ta, which varied between 623K and 923K. X-ray diffraction results indicated the films are in amorphous state after annealing at Ta = 623K-823K for Ih, and were partially crystallized at Ta = 923K for lh. Meanwhile, the annealing treatment showed a great influence on the magnetic anisotropy. The orientation of the magnetic easy axis of the as-deposited films changed from perpendicular to parallel to the film plane after annealing treatment. The mechanism of the transformation of the magnetic easy axis was explained in terms of the tensile stress which is formed due to the difference in the thermal expansion coefficients of the thin film and substrate.
Magnetostriction annealing thin films (Tb0.28Dy0.72)Fe1.90
KUOSHE LI HONGWEI LI HUI YAN DUNBO YU FENGYING WANG GUOCHENG ZHANG
National Engineering Research Center for Rare Earth Materials, General Research Institute for Non-Fe National Engineering Research Center for Rare Earth Materials, General Research Institute for Non-Fe The College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100022,
国际会议
第五届先进材料与加工国际会议(Fifth International Conference on Advanced Materials and Processing ICAMP-5)
哈尔滨
英文
1841-1846
2008-09-03（万方平台首次上网日期，不代表论文的发表时间）