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The existing experimental results have shown that the magnetic characteristics of amorphous wires with different lengths or of the same amorphous wire at different longitudinal locations are significantly different. To study this effect, the magnetic field at the end of the amorphous wires is obtained by numerical computation method based on the supposed uniform distribution of the magnetic charge. Then, the general formula of the magnetic field inside the amorphous wire is deduced by analyzing the calculation results and using the fitting algorithm. Because the magnetic field intensity inside the wire is restricted by the external magnetic field source, the model of three magnetic zones is proposed, which consists of the zone of uniform magnetic field in the middle of the wire, the magnetic field entrance-zone and exit-zone at the two ends. The critical length of the magnetic end effect can be estimated by a formula derived from the model. The simulation results of the magnetic end effect can satisfactorily explain the existing experiments.
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Keywords:
- end effect /
- amorphous wire /
- magnetic charge /
- magnetic field calculation
[1] Mohri K, Kohzawa T, Kawashima K, Yoshida H, Panina L V 1992 IEEE Trans. Magn. 28 3150
[2] Phan M H, Peng H X 2008 Prog. Mater. Sci. 53 323
[3] Kuzminski M, Nesteruk K, Lachowicz H K 2008 Sens. Actuators A 141 68
[4] Pang H, Li G, Wang Z J 2008 Acta Phys. Sin. 57 7194 (in Chinese) [庞 浩、李 根、王赞基 2008 57 7194]
[5] Antonov A S, Iakubov I T, Lagarkov A N 1998 J. Magn. Magn. Mater. 187 252
[6] Liu L P, Zhao Z J, Huang C X, Wu Z M, Yang X L 2006 Acta Phys. Sin. 55 2014 (in Chinese)[刘龙平、赵振杰、黄灿星、吴志明、杨燮龙 2006 55 2014]
[7] Giouroudi I, Hauser H, Musiejovsky L, Steurer J, Didosyan Y S 2005 J. Appl. Phys. 97 10M109-1
[8] Ohmori K, Tan K, Itoi K, Nagasu K, Uemichi Y, Aizawa T, Yamauchi R 2008 IEEE Trans. Magn. 44 3977
[9] Yan Y D, Torre E D 1989 J. Appl. Phys. 66 320
[10] Zhukov A P, Vazquez M, Velazquez J, Chiriac H, Larin V 1995 J. Magn. Magn. Mater. 151 132
[11] Chiriac H, Borza F, Murgulescu I 2000 J. Optoelectron. Adv. Mater. 2 411
[12] Zhukova V, Zhukov A P, Usov N A, Blanco J M, Gonzalez J 2004 Physica B: Condens. Matter 343 369
[13] Zhukova V, Usov N A, Zhukov A, Gonzalez J 2002 Phys. Rev. B 65 134407
[14] Usov N A 1999 J. Magn. Magn. Mater. 203 277
[15] Chen J, Lu X W 2009 Acta Phys. Sin. 58 3839 (in Chinese) [陈 杰、鲁习文 2009 58 3839]
[16] Thide B 2003 Electromagnetic Field Theory (Sweden: Upsilon Books) p15
[17] Milton K A, Kalbfleisch G R, Luo W, Gamberg L 2002 Int. J. Mod. Phys. A 17 732
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[1] Mohri K, Kohzawa T, Kawashima K, Yoshida H, Panina L V 1992 IEEE Trans. Magn. 28 3150
[2] Phan M H, Peng H X 2008 Prog. Mater. Sci. 53 323
[3] Kuzminski M, Nesteruk K, Lachowicz H K 2008 Sens. Actuators A 141 68
[4] Pang H, Li G, Wang Z J 2008 Acta Phys. Sin. 57 7194 (in Chinese) [庞 浩、李 根、王赞基 2008 57 7194]
[5] Antonov A S, Iakubov I T, Lagarkov A N 1998 J. Magn. Magn. Mater. 187 252
[6] Liu L P, Zhao Z J, Huang C X, Wu Z M, Yang X L 2006 Acta Phys. Sin. 55 2014 (in Chinese)[刘龙平、赵振杰、黄灿星、吴志明、杨燮龙 2006 55 2014]
[7] Giouroudi I, Hauser H, Musiejovsky L, Steurer J, Didosyan Y S 2005 J. Appl. Phys. 97 10M109-1
[8] Ohmori K, Tan K, Itoi K, Nagasu K, Uemichi Y, Aizawa T, Yamauchi R 2008 IEEE Trans. Magn. 44 3977
[9] Yan Y D, Torre E D 1989 J. Appl. Phys. 66 320
[10] Zhukov A P, Vazquez M, Velazquez J, Chiriac H, Larin V 1995 J. Magn. Magn. Mater. 151 132
[11] Chiriac H, Borza F, Murgulescu I 2000 J. Optoelectron. Adv. Mater. 2 411
[12] Zhukova V, Zhukov A P, Usov N A, Blanco J M, Gonzalez J 2004 Physica B: Condens. Matter 343 369
[13] Zhukova V, Usov N A, Zhukov A, Gonzalez J 2002 Phys. Rev. B 65 134407
[14] Usov N A 1999 J. Magn. Magn. Mater. 203 277
[15] Chen J, Lu X W 2009 Acta Phys. Sin. 58 3839 (in Chinese) [陈 杰、鲁习文 2009 58 3839]
[16] Thide B 2003 Electromagnetic Field Theory (Sweden: Upsilon Books) p15
[17] Milton K A, Kalbfleisch G R, Luo W, Gamberg L 2002 Int. J. Mod. Phys. A 17 732
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