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采用Monte Carlo 方法,研究铁磁/反铁磁双层膜中的磁锻炼效应.结果表明,反铁磁层中冷场诱发的界面净磁化(钉扎效应)的磁弛豫可导致系统中的交换偏置场的磁锻炼效应.进一步研究表明,反铁磁层中掺杂可调控交换偏置场的磁锻炼效应,原因在于反铁磁层中掺杂能有效地改变冷场诱发的净磁化的磁弛豫过程.
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关键词:
- Monte-Carlo方法 /
- 交换偏置场和矫顽场 /
- 磁锻炼效应 /
- 磁弛豫
Using Monte Carlo method to study the magnetic training effect in the ferromagnetic/antiferromagnetic bilayers, it was shown that the magnetic relaxation of the net magnetization induced by cold magnetic field which exists in the interface between ferromagnetic and antiferromagnetic bilayer can result in the training effect in the exchange bias and coercivity of the system. Further studies have shown that the doping in antiferromagnetic layer can modulate the training effect in the exchange bias, because the doping in antiferromagnetic layer can effectively change the magnetic relaxation process of the net magnetization induced by the cold field.[1] Meiklejohn W H, Bean C P 1956 Phys. Rev. 102 1413
[2] Stamps R L, 2002 J. Magn. Magn. Mater. 242 139
[3] Dieny B 1994 J. Magn. Magn. Mater. 136 335
[4] Ki Wi M 2001 J. Magn. Magn. Mater. 234 584
[5] Ohshima N, Nakada M, Tskamoto Y 1998 IEEE Trans.Magn. 34 1429
[6] Li Y, Chen Q Y, Jiang H W, Wang A L, Zheng W 2006 Acta Phys. Sin. 55 6647 (in Chinese)[李 岩、陈庆永、姜宏伟、王艾玲、郑 鹉2006 55 6647]
[7] Hu J G, Jin G J, Hu A, Ma Y Q 2004 Eur. Phys. J. B 40 265
[8] Teng J, Cai J W, Xiong X T, Lai W Y, Zhu F W 2004 Acta Phys. Sin. 53 272(in Chinese)[滕 蛟、蔡建旺、熊小涛、赖武彦、朱逢吾2004 53 272]
[9] Xu X Y, Tian H Y, Hu J G 2009 J. Appl. Phys. 106 93910
[10] Fecioru-Morariu M, Wrona J 2008 Phys. Rev. B 77 054441
[11] Jimenez E, Camarero J, Sort J 2009 Phys. Rev. B 80 01441
[12] Qiu X P, Yang D Z, Zhou S M, Chantrell R W, O’Grady K, Nowak U, Du J, Bai X J, Sun L 2008 Phys. Rev. Lett. 101 147207
[13] Ventura J, Araujo J P, Sousa J B 2008 Phys. Rev. B 77 184404
[14] Brems S, Temst K, Haesendonck C V 2007 Phys. Rev. Lett. 99 067201
[15] Biternas A G, Nowak U, Chantrell R W 2009 Phys. Rev. B 80 134419
[16] Hoffmann A 2004 Phys. Rev. Lett. 93 097203
[17] Suess D, Kirschner M, Schrefl T, Fidler J, Stamps R L, Kim J V 2003 Phys. Rev. B 67 054419
[18] Binek C 2004 Phys. Rev. B 70 014421
[19] Hong J I, Leo T, Smith D J, Berkowitz A E 2006 Phys. Rev. Lett. 96 117204
[20] Teng J, Cai J W, Xiong X T, Lai W Y, Zhu F W 2002 Acta Phys. Sin. 51 2849(in Chinese)[滕 蛟、蔡建旺、熊小涛、赖武彦、朱逢吾2002 51 2849]
[21] Xu X Y, Wang M H, Hu J G 2008 Chin. Phys. B 17 1443
[22] Ma M, Cai L, Wang X F, Hu J G 2007 Acta Phys. Sin. 56 529(in Chinese)[马 梅、蔡 蕾、王兴福、胡经国2007 56 529]
[23] Dai B, Cai J W, Lai W Y 2003 Acta Phys. Sin. 52 478(in Chinese)[代 波、 蔡建旺、 赖武彦 2003 52 478]
[24] Hu J G, Stamps R L 2006 Chin. Phys. 15 1595
[25] Hu J G, Jin G J, Stamps R L 2006 J. Magn. Magn. Mater. 301 238
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[1] Meiklejohn W H, Bean C P 1956 Phys. Rev. 102 1413
[2] Stamps R L, 2002 J. Magn. Magn. Mater. 242 139
[3] Dieny B 1994 J. Magn. Magn. Mater. 136 335
[4] Ki Wi M 2001 J. Magn. Magn. Mater. 234 584
[5] Ohshima N, Nakada M, Tskamoto Y 1998 IEEE Trans.Magn. 34 1429
[6] Li Y, Chen Q Y, Jiang H W, Wang A L, Zheng W 2006 Acta Phys. Sin. 55 6647 (in Chinese)[李 岩、陈庆永、姜宏伟、王艾玲、郑 鹉2006 55 6647]
[7] Hu J G, Jin G J, Hu A, Ma Y Q 2004 Eur. Phys. J. B 40 265
[8] Teng J, Cai J W, Xiong X T, Lai W Y, Zhu F W 2004 Acta Phys. Sin. 53 272(in Chinese)[滕 蛟、蔡建旺、熊小涛、赖武彦、朱逢吾2004 53 272]
[9] Xu X Y, Tian H Y, Hu J G 2009 J. Appl. Phys. 106 93910
[10] Fecioru-Morariu M, Wrona J 2008 Phys. Rev. B 77 054441
[11] Jimenez E, Camarero J, Sort J 2009 Phys. Rev. B 80 01441
[12] Qiu X P, Yang D Z, Zhou S M, Chantrell R W, O’Grady K, Nowak U, Du J, Bai X J, Sun L 2008 Phys. Rev. Lett. 101 147207
[13] Ventura J, Araujo J P, Sousa J B 2008 Phys. Rev. B 77 184404
[14] Brems S, Temst K, Haesendonck C V 2007 Phys. Rev. Lett. 99 067201
[15] Biternas A G, Nowak U, Chantrell R W 2009 Phys. Rev. B 80 134419
[16] Hoffmann A 2004 Phys. Rev. Lett. 93 097203
[17] Suess D, Kirschner M, Schrefl T, Fidler J, Stamps R L, Kim J V 2003 Phys. Rev. B 67 054419
[18] Binek C 2004 Phys. Rev. B 70 014421
[19] Hong J I, Leo T, Smith D J, Berkowitz A E 2006 Phys. Rev. Lett. 96 117204
[20] Teng J, Cai J W, Xiong X T, Lai W Y, Zhu F W 2002 Acta Phys. Sin. 51 2849(in Chinese)[滕 蛟、蔡建旺、熊小涛、赖武彦、朱逢吾2002 51 2849]
[21] Xu X Y, Wang M H, Hu J G 2008 Chin. Phys. B 17 1443
[22] Ma M, Cai L, Wang X F, Hu J G 2007 Acta Phys. Sin. 56 529(in Chinese)[马 梅、蔡 蕾、王兴福、胡经国2007 56 529]
[23] Dai B, Cai J W, Lai W Y 2003 Acta Phys. Sin. 52 478(in Chinese)[代 波、 蔡建旺、 赖武彦 2003 52 478]
[24] Hu J G, Stamps R L 2006 Chin. Phys. 15 1595
[25] Hu J G, Jin G J, Stamps R L 2006 J. Magn. Magn. Mater. 301 238
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