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运用一维和三维微磁学模拟探究了易轴与外场存在偏角β情况下Nd2Fe14B/α-Fe 双层膜的磁矩反转过程, 计算了磁矩反转过程中磁滞回线和磁能积, 并与实验结果进行了对比. 计算结果表明, 在膜面内的易轴偏角β严重影响磁矩反转过程. 当β≠0°时, 磁矩反转过程中无明显成核现象, 随着易轴偏角β的增大, 剩磁显著减小, 磁滞回线方形度变差, 导致磁能积急剧减小. 对于Nd2Fe14B(10 nm)/α-Fe(8 nm)双层膜, β=10°时, 最大磁能积下降30.3%. 在磁矩反转过程中, 总能量最大时对应的外磁场能随易轴偏角的增大而减小, 交换作用能先增大后减小, 磁晶各向异性能则随着易轴偏角的增大而增大. 软磁相厚度越大, 双层膜的磁能积受易轴偏角影响越大. 在膜面外的易轴偏角对磁矩反转过程也有类似的影响.
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[2] Skomski R, Coey J M D 1993 Phys. Rev. B 48 15812
[3] Schrefl T, Kronmller H, Fidler J 1993 J. Magn. Magn. Mater. 127 L273
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[26] Liu J P, Liu Y, Skomski R, Sellmyer D J 1999 IEEE Trans. Magn. 35 3241
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[28] Cui W B, Takahashi Y K, Hono K 2012 Adv. Mater. 24 6530
[29] Zhang J, Takahashi Y K, Gopalan R, Hono K 2005 Appl. Phys. Lett. 86 122509
[30] Liu Y, George T A, Skomski R, Sellmyer D J 2011 Appl. Phys. Lett. 99 172504
[31] Asti G, Solzi M, Ghidini M 2001 J. Magn. Magn. Mater. 226–230 1464
[32] Zhao G P, Deng Y, Zhang H W, Cheng Z H, Ding J 2011 J. Appl. Phys. 109 07D340
[33] Asti G, Solzi M, Ghidini M, Neri F M 2004 Phys. Rev. B 69 174401
[34] Leineweber T, Kronmller H 1997 J. Magn. Magn. Mater. 176 145
[35] Pellicelli R, Solzi M, Neu V, Hägner K, Pernechele C, Ghidini M 2010 Phys. Rev. B 81 184430
[36] Wilson M J, Zhu M, Myers R C, Awschalom D D, Schiffer P, Samarth N 2010 Phys. Rev. B 81 045319
[37] Zhao G P, Chen L, Huang C W, Guo N L, Feng Y P 2010 Solid State Commun. 150 1486
[38] Brown W F 1945 Rev. Mod. Phys. 17 15
[39] Donahue M J, Porter D G 1999 OOMMF User’s Guide version 1.0 (Gaithersburg: National Institute of Standards and Technology) NISTIR 6376
[40] Song S Y, Guo G H, Zhang G F, Song W B 2009 Acta Phys. Sin. 58 5757 (in Chinese) [宋三元, 郭光华, 张光富, 宋文斌 2009 物理学报 58 5757]
[41] Chen R J, Rong C B, Zhang H W, He S L, Zhang S Y, Shen B G 2004 Acta Phys. Sin. 53 4341 (in Chinese) [陈仁杰, 荣传兵, 张宏伟, 贺淑莉, 张绍英, 沈保根 2004 物理学报 53 4341]
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[1] Kneller E F, Hawig R 1991 IEEE Trans. Magn. 27 3588
[2] Skomski R, Coey J M D 1993 Phys. Rev. B 48 15812
[3] Schrefl T, Kronmller H, Fidler J 1993 J. Magn. Magn. Mater. 127 L273
[4] Asti G, Ghidini M, Pellicelli R, Pernechele C, Solzi M, Albertini F, Casoli F, Fabbrici S, Pareti L 2006 Phys. Rev. B 73 094406
[5] Zhao G P, Deng Y, Zhang H W, Chen L, Feng Y P, Bo N 2010 J. Appl. Phys. 108 093928
[6] Belemuk A M, Chui S T 2011 J. Appl. Phys. 109 093909
[7] Zhao G P, Wang X L 2006 Phys. Rev. B 74 012409
[8] Zhao G P, Zhou G, Zhang H W, Feng Y P, Xian C W, Zhang Q X 2008 Comput. Mater. Sci. 44 117
[9] Schrefl T, Fidler J, Kronmller H 1994 Phys. Rev. B 49 6100
[10] Shindo M, Ishizone M, Sakuma A, Kato H, Miyazaki T 1997 J. Appl. Phys. 81 4444
[11] Chumakov D, Schäfer R, Elefant D, Eckert D, Schultz L, Yan S S, Barnard J A 2002 Phys. Rev. B 66 134409
[12] Guo Z J, Jiang J S, Pearson J E, Bader S D, Liu J P 2002 Appl. Phys. Lett. 81 2029
[13] Jiang J S, Pearson J E, Liu Z Y, Kabius B, Trasobares S, Miller D J, Bader S D, Lee D R, Haskel D, Srajer G, Liu J P 2004 Appl. Phys. Lett. 85 5293
[14] Pogossian S P, Spenato D, Dekadjevi D T, Youssef J B 2006 Phys. Rev. B 73 174414
[15] Ma B, Wang H, Zhao H B, Sun C G, Acharya R, Wang J P 2010 IEEE Magn. Lett. 46 2345
[16] Hou H C, Liao J W, Lin M S, Lin H J, Chang F H, Chen R Z, Chiu C H, Lai C H 2011 J. Appl. Phys. 109 07C104
[17] Liu S, Higgins A, Shin E, Bauser S, Chen C, Lee D, Shen Y, He Y, Huang M Q 2006 IEEE Trans. Magn. 42 2912
[18] Neu V, Häfner K, Patra A K, Schultz L 2006 J. Phys. D 39 5116
[19] Patra A K, Neu V, Fahler S, Groetzschel R, Schultz L 2006 Appl. Phys. Lett. 89 142512
[20] Serrona L K E B, Sugimura A, Adachi N, Okuda T, Ohsato H, Sakamoto I, Nakanishi A, Motokawa M, Ping D H, Hono K 2003 Appl. Phys. Lett. 82 1751
[21] Ping D H, Hono K, Hirosawa S 1998 J. Appl. Phys. 83 7769
[22] Wang Y, Wang R, Xie H L, Bai J M, Wei F L 2013 Chin. Phys. B 22 68506
[23] Li Z B, Shen B G, Niu E, Sun J R 2013 Appl. Phys. Lett. 103 062405
[24] Yan S S, Elkawni M, Li D S, Garmestani H, Liu J P, Weston J L, Zangari G 2003 J. Appl. Phys. 94 4535
[25] Deng Y, Zhao G P, Bo N 2011 Acta Phys. Sin. 60 037502 (in Chinese) [邓娅, 赵国平, 薄鸟 2011 物理学报 60 037502]
[26] Liu J P, Liu Y, Skomski R, Sellmyer D J 1999 IEEE Trans. Magn. 35 3241
[27] Liu W, Zhang Z D, Liu J P, Chen L J, He L L, Liu Y, Sun X K, Sellmyer D J 2002 Adv. Mater. 14 1832
[28] Cui W B, Takahashi Y K, Hono K 2012 Adv. Mater. 24 6530
[29] Zhang J, Takahashi Y K, Gopalan R, Hono K 2005 Appl. Phys. Lett. 86 122509
[30] Liu Y, George T A, Skomski R, Sellmyer D J 2011 Appl. Phys. Lett. 99 172504
[31] Asti G, Solzi M, Ghidini M 2001 J. Magn. Magn. Mater. 226–230 1464
[32] Zhao G P, Deng Y, Zhang H W, Cheng Z H, Ding J 2011 J. Appl. Phys. 109 07D340
[33] Asti G, Solzi M, Ghidini M, Neri F M 2004 Phys. Rev. B 69 174401
[34] Leineweber T, Kronmller H 1997 J. Magn. Magn. Mater. 176 145
[35] Pellicelli R, Solzi M, Neu V, Hägner K, Pernechele C, Ghidini M 2010 Phys. Rev. B 81 184430
[36] Wilson M J, Zhu M, Myers R C, Awschalom D D, Schiffer P, Samarth N 2010 Phys. Rev. B 81 045319
[37] Zhao G P, Chen L, Huang C W, Guo N L, Feng Y P 2010 Solid State Commun. 150 1486
[38] Brown W F 1945 Rev. Mod. Phys. 17 15
[39] Donahue M J, Porter D G 1999 OOMMF User’s Guide version 1.0 (Gaithersburg: National Institute of Standards and Technology) NISTIR 6376
[40] Song S Y, Guo G H, Zhang G F, Song W B 2009 Acta Phys. Sin. 58 5757 (in Chinese) [宋三元, 郭光华, 张光富, 宋文斌 2009 物理学报 58 5757]
[41] Chen R J, Rong C B, Zhang H W, He S L, Zhang S Y, Shen B G 2004 Acta Phys. Sin. 53 4341 (in Chinese) [陈仁杰, 荣传兵, 张宏伟, 贺淑莉, 张绍英, 沈保根 2004 物理学报 53 4341]
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