Manipulating magnetic anisotropy and ultrafast spin dynamics of magnetic nanostructures

doi:10.1088/1674-1056/24/7/077505

Abstract

We present our extensive research into magnetic anisotropy. We tuned the terrace width of Si(111) substrate by a novel method: varying the direction of heating current and consequently manipulating the magnetic anisotropy of magnetic structures on the stepped substrate by decorating its atomic steps. Laser-induced ultrafast demagnetization of a CoFeB/MgO/CoFeB magnetic tunneling junction was explored by the time-resolved magneto-optical Kerr effect (TRMOKE) for both the parallel state (P state) and the antiparallel state (AP state) of the magnetizations between two magnetic layers. It was observed that the demagnetization time is shorter and the magnitude of demagnetization is larger in the AP state than those in the P state. These behaviors are attributed to the ultrafast spin transfer between two CoFeB layers via the tunneling of hot electrons through the MgO barrier. Our observation indicates that ultrafast demagnetization can be engineered by the hot electron tunneling current. This opens the door to manipulate the ultrafast spin current in magnetic tunneling junctions. Furthermore, an all-optical TR-MOKE technique provides the flexibility for exploring the nonlinear magnetization dynamics in ferromagnetic materials, especially with metallic materials.

Keywords: magnetic anisotropy ultrafast spin dynamics magnetic nanostructures

Received: 15 April 2015
Accepted manuscript online:

PACS:	75.78.-n	(Magnetization dynamics)
	75.40.Gb	(Dynamic properties?)
	76.50.+g	(Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance)
	75.70.-i	(Magnetic properties of thin films, surfaces, and interfaces)

Fund:

Project supported by the National Basic Research Program of China (Grant Nos. 2015CB921403, 2011CB921801, and 2012CB933101) and the National Natural Science Foundation of China (Grant Nos. 51427801, 11374350, 51201179, and 11274361).

Corresponding Authors: Cheng Zhao-Hua
E-mail: zhcheng@iphy.ac.cn

Cite this article:

Cheng Zhao-Hua (成昭华), He Wei (何为), Zhang Xiang-Qun (张向群), Sun Da-Li (孙达力), Du Hai-Feng (杜海峰), Wu Qiong (吴琼), Ye Jun (叶军), Fang Ya-Peng (房亚鹏), Liu Hao-Liang (刘郝亮) Manipulating magnetic anisotropy and ultrafast spin dynamics of magnetic nanostructures 2015 Chin. Phys. B 24 077505

[1]	Mermin N D and Wagner H 1966 Phys. Rev. Lett. 17 1133
[2]	Bander M and Mills D L 1988 Phys. Rev. B 38 12015
[3]	Brown W F Jr. 1940 Phys. Rev. 58 736
[4]	Daniel E D, Mee C D and Clark M H 1999 Magnetic Recording-the First 100 Years (New York: IEEE Press)
[5]	Snoek J L 1947 Nature 160 90
[6]	Xue D S, Li F S, Fan X L and Wen F S 2008 Chin. Phys. Lett. 25 4120
[7]	Hauschild J, Elmers H J and Gradmann U 1998 Phys. Rev. B 57 R677
[8]	Shen J, Skomski R, Klaua M, Jenniches H, Sunder Manoharan S and Kirchner J 1997 Phys. Rev. B 56 2340
[9]	Shen J, Klaua M, Ohresser P, Jenniches H, Barthel J, Mohan C V and Kirschner J 1997 Phys. Rev. B 56 11134
[10]	Li D Q, Buenya B R, Pearson J and Bader S D 2001 Phys. Rev. B 64 144410
[11]	Gambardella G, Dallmeyer A, Maiti K, Malagoli M C, Rusponi S, Ohresser P, Eberhardt W, Carbone C and Kern K 2004 Phys. Rev. Lett. 93 077203
[12]	Cheng R, Guslienko K Y, Fardin F Y, Pearson J E, Ding H F, Li D and Bader S D 2005 Phys. Rev. B 72 014409
[13]	Weiss N, Cren T, Epple M, Rusponi S, Baudot G, Rohart S, Tejeda A, Repain V, Rousset S, Ohresser P, Scheurer F, Bencok P and Brune H 2005 Phys. Rev. Lett. 95 157204
[14]	Bürgi L, Jeandupeux O, Hirstein A, Brune H and Kernet K 1998 Phys. Rev. Lett. 81 5370
[15]	Zhitenev N B, Erbe A and Bao Z 2004 Phys. Rev. Lett. 92 196805
[16]	Mugarza A, Schiller F, Kuntze J, Cordń J, Ruiz-Osés M and Ortega J E 2006 J. Phys.: Condens. Matter 18 S27
[17]	Ortega J E, Speller S, Bachmann A R, Mascaraque A, Michel E G, Närmann A, Mugarza A, Rubio A and Himpsel F J 2000 Phys. Rev. Lett. 84 6110
[18]	Baumberger F, Hengsberger M, Muntwiler M, Shi M, Krempasky J, Patthey L, Osterwalder J and Greber T 2004 Phys. Rev. Lett. 92 016803
[19]	Yin L F, Xiao D, Gai Z,Ward T Z,Widjaja N, Stocks G M, Cheng Z H, Plummer EW, Zhang Z Y and Shen J 2010 Phys. Rev. Lett. 104 167202
[20]	Wawro A, Suto S, Czajka R and Kasuya A 2008 Nanotechnology 19 205706
[21]	Bubendorff J L, Zabrocki S, Garreau G, Hajjar S, Jaafar R, Berling D, Mehdaoui A, Pirri C and Gewinner G 2006 Europhys. Lett. 75 119
[22]	Kataoka K, Hattori K, Miyatake Y and Daimon H 2006 Phys. Rev. B 74 155406
[23]	Rezende S M, Moura J A S, de Aguiar F M and Schreiner W H 1994 Phys. Rev. B 49 15105
[24]	Cougo dos Santos M, Geshev J, Schmidt J E, Teixeira S R and Pereira L G 2000 Phys. Rev. B 61 1311
[25]	Wawro A, Suto S, Czajka R and Kasuya 2003 Phys. Rev. B 67 195401
[26]	Cougo dos Santos M, Geshev J, Pereira L G, AlvesMCMand Schmidt J E 2004 Phys. Rev. B 70 104420
[27]	Žutić I, Fabian J and Das Sarma S 2004 Rev. Mod. Phys. 76 323
[28]	Men F K,Wang P J, Liu F, Chen C H, Cheng D L, Lin J L and Himpsel F J 2002 Phys. Rev. Lett. 88 096105
[29]	Kirakosian A, Bennewitz R, Crain J N, Fauster T, Lin J L, Petrovykh D Y and Himpsel F J 2001 Appl. Phys. Lett. 79 1608
[30]	Viernow J, Lin J L, Petrovykh D Y, Leibsle F M, Men F K and Himpse F J 1998 Appl. Phys. Lett. 72 948
[31]	Yang Y N, Fu E S and Williams E D 1996 Surf. Sci. 356 101
[32]	Usov V, Coileain C O and Shvets I V 2011 Phys. Rev. B 83 155321
[33]	Zhan Q F, Haesendonck C V, Vandezande S and Temst K 2009 Appl. Phys. Lett. 94 042504
[34]	Umlor M T 2005 Appl. Phys. Lett. 87 082505
[35]	Dijken S V, Jorritsman L C and Poelsema B 1999 Phys. Rev. Lett. 82 4038
[36]	Seo J, Kim H Y and Kim J S 2005 Phys. Rev. B 71 075414
[37]	Dijken SV, Santo G D and Poelsema B 2011 Phys. Rev. B 63 104431
[38]	Hillebrands B and Ounadjela K 2003 Topics of Applied Physics: Spin Dynamics in Confined Magnetic Structures II (New York: Springer)
[39]	Beaurepaire E, Merle J C, Daunois A and Bigot J Y 1996 Phys. Rev. Lett. 76 4250
[40]	Atxitia U, Chubykalo-Fesenko O, Walowski J, Mann A and Münzenberg M 2010 Phys. Rev. B 81 174401
[41]	Vonesch and Bigot J Y 2012 Phys. Rev. B 85 180407(R)
[42]	Krauß M, Roth T, Alebrand S, Steil D, Cinchetti M, Aeschlimann M and Schneider H C 2009 Phys. Rev. B 80 180407
[43]	Cinchetti M, Albaneda M S, Hoffmann D, Roth T, Wüstenberg J P, Krauß M and Aeschlimann M 2006 Phys. Rev. Lett. 97 177201
[44]	Carva K, Battiato M, Legut D and Oppeneer P M 2013 Phys. Rev. B 87 184425
[45]	Carpene E, Mancini E, Dallera C, Brenna M, Puppin E and De Silvestri S 2008 Phys. Rev. B 78 174422
[46]	Battiato M, Carva K and Oppeneer P M 2010 Phys. Rev. Lett 105 027203
[47]	Battiato M, Carva K and Oppeneer P M 2012 Phys. Rev. B 86 024404
[48]	Kampfrath T, Battiato M, Maldonado P, Eilers G, Nötzold J, Mährlein S, Zbarsky V, Freimuth F, Mokrousov Y, Blügel S, Wolf M, Radu I, Oppeneer P M and Münzenberg M 2013 Nat. Nanotech. 8 256
[49]	Yaegashi S, Kurihara T and Satoh K 1997 J. Appl. Phys. 81 6303
[50]	Mattheis R and Quednau G 1999 J. Magn. Magn. Mater. 205 143
[51]	Garreau G, Hajjar S, Bubendorff J L, Pirri C, Berling D, Mehdaoui A, Stephan R, Wetzel P, Zabrocki S, Gewinner G, Boukari S and Beaurepaire E 2005 Phys. Rev. B 71 094430
[52]	McGuire T R and Potter R I 1975 IEEE Transactions on Magnetics 11 1018
[53]	Dahlberg E D, Riggs K and Prinz G A 1988 J. Appl. Phys. 63 4270
[54]	Miller B H and Dahlberg E D 1996 Appl. Phys. Lett. 69 3932
[55]	Krivorotov I N, Leighton C, Nogués J, Schuller I K and Dahlberg E D 2002 Phys. Rev. B 65 100402
[56]	Cao W N, Li J, Chen G, Zhu J, Hu C R and Wu Y Z 2011 Appl. Phys. Lett. 98 262506
[57]	Li J, Jin E, Son H, Tan A, Cao W N, Hwang C and Qiu Z Q 2012 Rev. Sci. Instrum. 83 033906
[58]	Gruyters M 2006 Phys. Rev. B 73 014404
[59]	Ma L Y, Tang L, Guan Z L, He K, An K, Ma X C, Jia J F and Xue Q K 2006 Phys. Rev. Lett. 97 266102
[60]	Berger A, Linke U and Oepen H P 1992 Phys. Rev. Lett. 68 839
[61]	Sun D L, Wang D Y, Du H F, Ning W, Gao J H, Fang Y P, Zhang X Q, Sun Y, Cheng Z H and Shen J 2009 Appl. Phys. Lett. 94 012504
[62]	Farle M 1998 Rep. Prog. Phys. 61 755
[63]	Aktas B, Heinrich B, Woltersdorf G, Urban R, Tagirov L R, Yildiz F, Ozdogan K, Ozdemir M, Yalcin O and Rameev B Z 2007 J. Appl. Phys. 102 013912
[64]	Tandon S, Beleggia M, Zhu Y and Graef M De 2004 J. Magn. Magn. Mater. 271 9
[65]	Beleggia M and Graef M De 2005 J. Magn. Magn. Mater. 285 L1
[66]	Du H F, He W, Liu H L, Sun D L, Fang Y P, Gao J H, Zhang X Q and Cheng Z H 2010 J. Appl. Phys. 108 083916
[67]	Du H F, He W, Liu H L, Fang YP, Wu Q, Zou T, Zhang X Q, Sun Y and Cheng Z H 2010 Appl. Phys. Lett. 96 142511
[68]	Kak M, Stephan R, Mehdaoui A, Berling D, Bolmont D, Gewinner G and Wetzel G 2004 Surf. Sci. 566–568 278
[69]	Liu H L, He W, Du H F, Fang Y P, Wu Q, Zhang X Q, Yang H T and Cheng Z H 2012 Chin. Phys. B 21 077503
[70]	Ye J, He W, Wu Q, Liu H L, Zhang X Q, Chen Z Y and Cheng Z H 2013 Sci. Rep. 3 2148
[71]	Li J L, Jia J F, Liang X J, Liu X, Wang J Z, Xue Q K, Li Z Q, Tse J S, Zhang Z Y and Zhang S B 2002 Phys. Rev. Lett. 88 066101
[72]	Wu Q, He W, Liu H L, Ye J, Zhang X Q, Yang H T, Chen Z Y and Cheng Z H 2013 Sci. Rep. 3 1547
[73]	Fang Y P, He W, Liu H L, Zhan Q F, Du H F, Wu Q, Yang H T, Zhang X Q and Cheng Z H 2010 Appl. Phys. Lett. 97 022507
[74]	Melnikov A, Razdolski I, Wehling T O, Papaioannou E T, Roddatis V, Fumagalli P, Aktsipetrov O, Lichtenstein A I and Bovensiepen U 2011 Phys. Rev. Lett. 107 076601
[75]	Eschenlohr A, Battiato M, Maldonado P, Pontius N, Kachel T, Holldack K, Mitzner R, Föhlisch A, Oppeneer P M and Stamm C 2013 Nat. Mater. 12 332
[76]	Rudolf D, La-O-Vorakiat C, Battiato M, Adam R, Shaw J M, Turgut E, Maldonado P, Mathias S, Grychtol P, Nembach H T, Silva T J, Aeschlimann M, Kapteyn H C, Murnane M M, Schneider C M and Oppeneer P M 2012 Nat. Commun. 3 1037
[77]	Malinowski G, Dalla Longa F, Rietjens J H H, Paluskar P V, Huijink R, Swagten H J M, and Koopmans B 2008 Nat. Phys. 4 855
[78]	Turgut E, La-o-vorakiat C, Shaw J M, Grychtol P, Nembach H T, Rudolf D, Adam R, Aeschlimann M, Schneider C M, Silva T J, Murnane M M, Kapteyn H C and Mathias S 2013 Phys. Rev. Lett. 110 197201
[79]	ButlerWH, Zhang X G, Schulthess T C and MacLaren JM2001 Phys. Rev. B 63 054416
[80]	Ando Y, Miyakoshi T, Oogane M, Miyazaki T, Kubota H, Ando K and Yuasa S 2005 Appl. Phys. Lett. 87 142502
[81]	He W, Zhu T, Zhang X Q, Yang H T and Cheng Z H 2013 Sci. Rep. 3 2883
[82]	Rado G T and Suhl H 1963 Richard W. Damon in Magnetism I ( New York: Academic Press Inc.) Chap. 11
[83]	Gurevich A G and Melkov G A 1996 Magnetization Oscillations and Waves (New York: CRC)
[84]	Cheng C and Bailey W E 2013 Appl. Phys. Lett. 103 242402
[85]	Ulrichs H, Lenk B and Muenzenberg M 2010 Appl. Phys. Lett. 97 092506
[86]	van Kampen M, Jozsa C, Kohlhepp J T, LeClair P, Lagae L, de Jonge W J M and Koopmans B 2002 Phys. Rev. Lett. 88 227201
[87]	Hillebrands B and Ounadjela K 2003 Spin Dynamics in Confined Magnetic Structures II (New York: Springer) pp. 253–320
[88]	Koopmans B, van Kampen M, Kohlhepp J T and de JongeWJ M 2000 Phys. Rev. Lett. 85 844
[89]	Koopmans B, Ruigrok J J M, Dalla Longa F and de Jonge W J M 2005 Phys. Rev. Lett. 95 267207
[90]	Li J, Lee M S, He W, Redeker B, Remhof A, Amaladass E, Hasse C and Eimüller T 2009 Rev. Sci. Instrum. 80 073703
[91]	He W, Hu B, Zhan Q F, Zhang X Q and Cheng Z H 2014 Appl. Phys. Lett. 104 142405

[1]	High repetition granular Co/Pt multilayers with improved perpendicular remanent magnetization for high-density magnetic recording Zhi Li(李智), Kun Zhang(张昆), Ao Du(杜奥), Hongchao Zhang(张洪超), Weibin Chen(陈伟斌), Ning Xu(徐宁), Runrun Hao(郝润润), Shishen Yan(颜世申), Weisheng Zhao(赵巍胜), and Qunwen Leng(冷群文). Chin. Phys. B, 2023, 32(2): 026803.
[2]	Bismuth doping enhanced tunability of strain-controlled magnetic anisotropy in epitaxial Y₃Fe₅O₁₂(111) films Yunpeng Jia(贾云鹏), Zhengguo Liang(梁正国), Haolin Pan(潘昊霖), Qing Wang(王庆), Qiming Lv(吕崎鸣), Yifei Yan(严轶非), Feng Jin(金锋), Dazhi Hou(侯达之), Lingfei Wang(王凌飞), and Wenbin Wu(吴文彬). Chin. Phys. B, 2023, 32(2): 027501.
[3]	Thickness-dependent magnetic properties in Pt/[Co/Ni]_n multilayers with perpendicular magnetic anisotropy Chunjie Yan(晏春杰), Lina Chen(陈丽娜), Kaiyuan Zhou(周恺元), Liupeng Yang(杨留鹏), Qingwei Fu(付清为), Wenqiang Wang(王文强), Wen-Cheng Yue(岳文诚), Like Liang(梁力克), Zui Tao(陶醉), Jun Du(杜军),Yong-Lei Wang(王永磊), and Ronghua Liu(刘荣华). Chin. Phys. B, 2023, 32(1): 017503.
[4]	Exchange-coupling-induced fourfold magnetic anisotropy in CoFeB/FeRh bilayer grown on SrTiO₃(001) Qingrong Shao(邵倾蓉), Jing Meng(孟婧), Xiaoyan Zhu(朱晓艳), Yali Xie(谢亚丽), Wenjuan Cheng(程文娟), Dongmei Jiang(蒋冬梅), Yang Xu(徐杨), Tian Shang(商恬), and Qingfeng Zhan(詹清峰). Chin. Phys. B, 2022, 31(8): 087503.
[5]	Voltage control magnetism and ferromagnetic resonance in an Fe₁₉Ni₈₁/PMN-PT heterostructure by strain Jun Ren(任军), Junming Li(李军明), Sheng Zhang(张胜), Jun Li(李骏), Wenxia Su(苏文霞), Dunhui Wang(王敦辉), Qingqi Cao(曹庆琪), and Youwei Du(都有为). Chin. Phys. B, 2022, 31(7): 077502.
[6]	The 50 nm-thick yttrium iron garnet films with perpendicular magnetic anisotropy Shuyao Chen(陈姝瑶), Yunfei Xie(谢云飞), Yucong Yang(杨玉聪), Dong Gao(高栋), Donghua Liu(刘冬华), Lin Qin(秦林), Wei Yan(严巍), Bi Tan(谭碧), Qiuli Chen(陈秋丽), Tao Gong(龚涛), En Li(李恩), Lei Bi(毕磊), Tao Liu(刘涛), and Longjiang Deng(邓龙江). Chin. Phys. B, 2022, 31(4): 048503.
[7]	Perpendicular magnetization and exchange bias in epitaxial NiO/[Ni/Pt]₂ multilayers Lin-Ao Huang(黄林傲), Mei-Yu Wang(王梅雨), Peng Wang(王鹏), Yuan Yuan(袁源), Ruo-Bai Liu(刘若柏), Tian-Yu Liu(刘天宇), Yu Lu(卢羽), Jia-Rui Chen(陈家瑞), Lu-Jun Wei(魏陆军), Wei Zhang(张维), Biao You(游彪), Qing-Yu Xu(徐庆宇), and Jun Du(杜军). Chin. Phys. B, 2022, 31(2): 027506.
[8]	Perpendicular magnetic anisotropy of Pd/Co₂MnSi/NiFe₂O₄/Pd multilayers on F-mica substrates Qingwang Bai(白青旺), Bin Guo(郭斌), Qin Yin(尹钦), and Shuyun Wang(王书运). Chin. Phys. B, 2022, 31(1): 017501.
[9]	Optimized growth of compensated ferrimagnetic insulator Gd₃Fe₅O₁₂ with a perpendicular magnetic anisotropy Heng-An Zhou(周恒安), Li Cai(蔡立), Teng Xu(许腾), Yonggang Zhao(赵永刚), and Wanjun Jiang(江万军). Chin. Phys. B, 2021, 30(9): 097503.
[10]	Magnetic dynamics of two-dimensional itinerant ferromagnet Fe₃GeTe₂ Lijun Ni(倪丽君), Zhendong Chen(陈振东), Wei Li(李威), Xianyang Lu(陆显扬), Yu Yan(严羽), Longlong Zhang(张龙龙), Chunjie Yan(晏春杰), Yang Chen(陈阳), Yaoyu Gu(顾耀玉), Yao Li(黎遥), Rong Zhang(张荣), Ya Zhai(翟亚), Ronghua Liu(刘荣华), Yi Yang(杨燚), and Yongbing Xu(徐永兵). Chin. Phys. B, 2021, 30(9): 097501.
[11]	Magnetic anisotropy in 5d transition metal-porphyrin molecules Yan-Wen Zhang(张岩文), Gui-Xian Ge(葛桂贤), Hai-Bin Sun(孙海斌), Jue-Ming Yang(杨觉明), Hong-Xia Yan(闫红霞), Long Zhou(周龙), Jian-Guo Wan(万建国), and Guang-Hou Wang(王广厚). Chin. Phys. B, 2021, 30(4): 047501.
[12]	Origin of itinerant ferromagnetism in two-dimensional Fe₃GeTe₂ Xi Chen(陈熙), Zheng-Zhe Lin(林正喆), and Li-Rong Cheng(程丽蓉). Chin. Phys. B, 2021, 30(4): 047502.
[13]	Enhanced hyperthermia performance in hard-soft magnetic mixed Zn_0.5Co_xFe_2.5-xO₄/SiO₂ composite magnetic nanoparticles Xiang Yu(俞翔, Li-Chen Wang(王利晨, Zheng-Rui Li(李峥睿, Yan Mi(米岩), Di-An Wu(吴迪安), and Shu-Li He(贺淑莉). Chin. Phys. B, 2021, 30(3): 036201.
[14]	RF magnetron sputtering induced the perpendicular magnetic anisotropy modification in Pt/Co based multilayers Runze Li(李润泽), Yucai Li(李予才), Yu Sheng(盛宇), and Kaiyou Wang(王开友). Chin. Phys. B, 2021, 30(2): 028506.
[15]	Magnetic anisotropy manipulation and interfacial coupling in Sm₃Fe₅O₁₂ films and CoFe/Sm₃Fe₅O₁₂ heterostructures Lei Shen(沈磊), Guanjie Wu(武冠杰), Tao Sun(孙韬), Zhi Meng(孟智), Chun Zhou(周春), Wenyi Liu(刘文怡), Kang Qiu(邱康), Zongwei Ma(马宗伟), Haoliang Huang(黄浩亮), Yalin Lu(陆亚林), Zongzhi Zhang(张宗芝), and Zhigao Sheng(盛志高). Chin. Phys. B, 2021, 30(12): 127502.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Metrics
Related Articles

Manipulating magnetic anisotropy and ultrafast spin dynamics of magnetic nanostructures

Cite this article:

Online attention