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易轴取向对Nd2Fe14B/α-Fe双层膜退磁过程影响的微磁学分析

夏静 张溪超 赵国平

易轴取向对Nd2Fe14B/α-Fe双层膜退磁过程影响的微磁学分析

夏静, 张溪超, 赵国平
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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.
    • 基金项目: 国家自然科学基金(批准号: 11074179)和四川省高等学校科研创新团队建设计划(批准号: 12TD008)资助的课题.
    [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]

  • [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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出版历程
  • 收稿日期:  2013-07-21
  • 修回日期:  2013-08-19
  • 刊出日期:  2013-11-05

易轴取向对Nd2Fe14B/α-Fe双层膜退磁过程影响的微磁学分析

  • 1. 四川师范大学物理与电子工程学院, 成都 610068
    基金项目: 

    国家自然科学基金(批准号: 11074179)和四川省高等学校科研创新团队建设计划(批准号: 12TD008)资助的课题.

摘要: 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.

English Abstract

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