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本工作研究不同退火温度的Fe_(62) Ni_(16)Si_8 B_(14), Fe_(40)Ni_(40) P_(12)B_8, Fe_(7.8)Co_(46.8)Ni_(23.4)Si_8B_(14)非晶磁性合金的Hall效应和电阻率ρ,发现这三种合金由非晶态向晶态转变时,反常Hall系数R_1和电阻率ρ发生变化,但R_1的相对变化较之ρ的相对变化大。实验证明,磁性材料的Hall电阻率ρ_H为: ρ_H=V_Hd/I=R_0B_e+4πR_sM式中R_0和R_s为正常和自发Hall系数,V_H为Hall电压,d和M为试样的厚度和磁化强度,B_e为外磁场,I为通过试样的电流。第一项是传导电子在磁场作用下由Lorentz力引起的正常Hall效应,第二项是传导电子在自旋-轨道耦合作用下由偏散射和旁跳
In this work, the effects of different annealing temperature on the corrosion resistance of Fe_ (62) Ni_ (16) Si_8 B_ (14), Fe_ (40) Ni_ (40) P_ (12) B_8, Fe_ (7.8) Co_ (46.8) Ni_ (23.4) Si_8B_ ) Hall effect and resistivity ρ of amorphous magnetic alloys, we find that the anomalous Hall coefficient R_1 and resistivity ρ change when the three alloys change from amorphous to crystalline. However, the relative change of R_1 relative to the change of ρ Big. The experimental results show that the Hall resistivity ρ_H of the magnetic material is: ρ_H = V_Hd / I = R_0B_e + 4πR_sM where R_0 and R_s are normal and spontaneous Hall coefficients, V_H is the Hall voltage, d and M are the thickness and magnetization of the sample, B_e for the external magnetic field, I is the current through the sample. The first is the normal Hall effect of conduction electrons caused by Lorentz force under magnetic field. The second is the conduction of electrons by partial scattering and by-pass in the spin-orbit coupling