The giant magneto-impedance (GMI) effect associated with the variation of transverse permeability for the ribbons Fe89Zr6Hf1B4 with different annealing temperatures TA = 793, 823, 893,923, 993, and 1033 K was investigated. There is an optimum annealing temperature TA ≈ 993 K for obtaining the largest GMI effect for the ribbons Fe89Zr6Hf1B4. The magneto-impedance GMI (Z) = (Z(H) - Z(O))/Z(O) for the ribbon with TA = 993 K can reach -55.09% at a frequency f =900 kHz under H = 7162 A/m. The relative changes of the real part of transverse permeability △μ'/μ'0 = (μ'(H)-μ'(O))/t'(O)under H = 7162 A·m-1 at f= 1 MHz are -78.83%, -89.98% and -94.77 % for Fe89Zr6Hf1B4 ribbons with TA = 823, 893,and 993 K, respectively. The strong GMI effect is accompanied by the large change of transverse permeability. A large magnetoreactance GMI(X) = (X (H) -X (O))/X (O) of-81.09% can be obtained at f= 100 kHz under H = 7162 A/m for the ribbon with TA = 993 K. Meanwhile, this present result gave an experimental support to the previous concept / assumption that the positive peak in the field dependence of magneto-impedance is connected to the peak of transverse permeability with varying fields.
参考文献
| [1] | Morhi K;Kawashima K;Kohzawa T;Yoshida H .Magneto-inductive effect (MI effect) in amorphous wires[J].IEEE Transactions on Magnetics,1992,28:3150. |
| [2] | Beach R S;Berkowitz A E .Giant magnetic field dependent impedance of amorphous FeCoSiB wire[J].Applied Physics Letters,1994,64:3652. |
| [3] | Panina L V;Mohri K;Bushida K;Noda M .Giant matneto-impedance and magneto-inductive effects in amorphous alloys[J].Journal of Applied Physics,1994,76:6198. |
| [4] | Sommer RL.;Chien CL. .GIANT MAGNETO-IMPEDANCE EFFECTS IN METGLAS 2705M[J].Journal of Applied Physics,1996(8 Pt.2a):5139-5141. |
| [5] | Machado FLA.;Rezende SM. .A THEORETICAL MODEL FOR THE GIANT MAGNETOIMPEDANCE IN RIBBONS OF AMORPHOUS SOFT-FERROMAGNETIC ALLOYS[J].Journal of Applied Physics,1996(8 Pt.2b):6558-6560. |
| [6] | Hu JF.;Qin HW.;Wang YZ.;Wang ZX.;Zhou SX.;Zhang LS. .Giant magnetoimpedance and permeability in CoFeNiSiB amorphous ribbon[J].Journal of Physics, D. Applied Physics: A Europhysics Journal,2000(5):L45-L47. |
| [7] | Sommer R L;Chien C L .Role of magnetic anisotropy in the magnetoimpedance effect in amorphous alloys[J].Applied Physics Letters,1995,67:857. |
| [8] | Hu Jifan;Chen Wenzhi;Wang Yizhong;Zhou Shaoxiong .Giant magnetoimpedance effect in Fe-Nb-B ribbon[J].Solid State Communications,1999(10):661-664. |
| [9] | Kurlyandskaya GV.;Vazquez M.;Sinnecker JP. Lukshina VA.;Potapov AP.;Garcia-Beneytez JM. .The influence of field- and stress-induced magnetic anisotropy on the magnetoimpedance in nanocrystalline FeCuNbSiB alloys[J].Journal of Applied Physics,1998(11 Pt.2):6581-6583. |
| [10] | Tejedor M;Hernando B;Sanchez M L;Prida V.M, Garcia-Beneytez J.M, Vazquez M, and Herzer G .Magneto-impedance effect in zero magnetostrictive nanocrystalline Fe73.5Cu1Nb3Si16.5B6 ribbons[J].Journal of Magnetism and Magnetic Materials,1998,185:61. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%