Asymmetric exchange bias training effect in spin glass (FeAu)/FeNi bilayers

doi:10.1088/1674-1056/23/10/107502

Abstract A significant exchange bias (EB) training effect has been observed in sputter deposited FeAu/FeNi bilayers, wherein the exchange field (H_E) exhibits a special sign-changeable temperature dependence. Very interestingly, despite the absence of multiple easy axes in the FeAu spin glass (SG) layer, H_E drops abruptly between the first and second magnetic cycles, which is followed by a more gradual continuous change in the subsequent cycles. This training behavior cannot be described by the empirical n^-1/2 law because of the asymmetric magnetization reversal processes. We propose modifying Binek's model to include the asymmetric changes of the pinning SG spins at the descending and ascending branches. This new model successfully describes the EB training effect in FeAu/FeNi bilayers.

Keywords: exchange bias training effect spin glass

Received: 09 May 2014
Revised: 07 June 2014
Accepted manuscript online:

PACS:	75.70.Cn	(Magnetic properties of interfaces (multilayers, superlattices, heterostructures))
	75.50.Lk	(Spin glasses and other random magnets)
	75.60.-d	(Domain effects, magnetization curves, and hysteresis)

Fund: Project supported by the National Basic Research Program of China (Grant Nos. 2014CB921101 and 2010CB923401) and the National Natural Science Foundations of China (Grant Nos. 51331004, 11074112, and 11174131).

Corresponding Authors: Du Jun
E-mail: jdu@nju.edu.cn

About author: 75.70.Cn; 75.50.Lk; 75.60.-d

Cite this article:

Rui Wen-Bin (芮文彬), He Mao-Cheng (何茂诚), You Biao (游彪), Shi Zhong (时钟), Zhou Shi-Ming (周仕明), Xiao Ming-Wen (肖明文), Gao Yuan (高远), Zhang Wei (张维), Sun Li (孙力), Du Jun (杜军) Asymmetric exchange bias training effect in spin glass (FeAu)/FeNi bilayers 2014 Chin. Phys. B 23 107502


[22]	Nogués J and Schuller I K 1999 J. Magn. Magn. Mater. 192 203

[1]	Rothschild A, Evakov A Y, Ashkenasy N and Komen Y 2003 Surf. Sci. 532 456

[23]	Yuan F T, Yao Y D, Lee S F and Hsu J H 2011 J. Appl. Phys. 109 07E148

[2]	Albu S P, Ghicov A, Macak J, Hahn M R and Schmuki P 2007 Nano Lett. 7 1286

[24]	Ohldag H, Scholl A, Nolting F, Arenholz E, Maat S, Young A T, Carey M and Stöhr J 2003 Phys. Rev. Lett. 91 017203

[25]	Radu F and Zabel H 2008 Magnetic Heterostructures, Springer Tracts in Modern Physics 227 p. 109

[26]	Su Y and Hu J 2012 J. Appl. Phys. 112 043906

[27]	Thomas S, Pookat G, Nair S S, Daniel M, Dymerska B, Liebig A, Al-Harthi S H, Ramanujan R V, Anantharaman M R, Fidler J and Albrecht M 2012 J. Phys.: Condens. Matter 24 256004

[3]	Armstrong A, Armstrong G, Canales J, Garcia R and Bruce P G 2005 Adv. Mater. 17 862

[4]	Armstrong A, Armstrong G, Canales J, Garcia R and Bruce P G 2006 Solid Lett. 9(A) 139

[5]	Karimi L and Zohoori S 2013 J. Nanostruct. Chem. 3 32

[28]	Xue X, Yuan X, Rui W, Xu Q, You B, Zhang W, Zhou S and Du J 2013 Eur. Phys. J. B 86 1

[1]	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.
[2]	Excess-iron driven spin glass phase in Fe_1+yTe_1-xSe_x Long Tian(田龙), Panpan Liu(刘盼盼), Tao Hong(洪涛), Tilo Seydel, Xingye Lu(鲁兴业), Huiqian Luo(罗会仟), Shiliang Li(李世亮), and Pengcheng Dai(戴鹏程). Chin. Phys. B, 2021, 30(8): 087402.
[3]	Doping effect on the structure and physical properties of quasi-one-dimensional compounds Ba₉Co₃(Se_1-xS_x)₁₅ (x = 0-0.2) Lei Duan(段磊), Xian-Cheng Wang(望贤成), Jun Zhang(张俊), Jian-Fa Zhao(赵建发), Wen-Min Li(李文敏), Li-Peng Cao(曹立朋), Zhi-Wei Zhao(赵志伟), Changjiang Xiao(肖长江), Ying Ren(任瑛), Shun Wang(王顺), Jinlong Zhu(朱金龙), and Chang-Qing Jin(靳常青). Chin. Phys. B, 2021, 30(10): 106101.
[4]	Influence of temperature on thermal relaxation of exchange bias field in CoFe/Cu/CoFe/IrMn spin valve Xian-Jin Qi(祁先进), Ni-Na Yang(杨妮娜), Xiao-Xu Duan(段孝旭), and Xue-Zhu Li(李雪竹). Chin. Phys. B, 2021, 30(10): 107501.
[5]	Electrostatic switch of magnetic core-shell in 0-3 type LSMO/PZT composite film Bo Chen(陈波), Zi-Run Li(李滋润), Chuan-Fu Huang(黄传甫), Yong-Mei Zhang(张永梅). Chin. Phys. B, 2020, 29(9): 097702.
[6]	Room-temperature electric control of exchange bias effect in CoO_1-δ/Co films using Pb(Mg_1/3Nb_2/3)_0.7Ti_0.3O₃ (110) substrates Xin Wen(闻馨), Rui Wu(吴锐), Wen-Yun Yang(杨文云), Chang-Sheng Wang(王常生), Shun-Quan Liu(刘顺荃), Jing-Zhi Han(韩景智), Jin-Bo Yang(杨金波). Chin. Phys. B, 2020, 29(9): 098503.
[7]	Synthesis, structure, and properties of Ba₉Co₃Se₁₅ with one-dimensional spin chains Lei Duan(段磊), Xian-Cheng Wang(望贤成), Jun Zhang(张俊), Jian-Fa Zhao(赵建发), Li-Peng Cao(曹立朋), Wen-Min Li(李文敏), Run-Ze Yu(于润泽), Zheng Deng(邓正), Chang-Qing Jin(靳常青). Chin. Phys. B, 2020, 29(3): 036102.
[8]	Spin glassy behavior and large exchange bias effect in cubic perovskite Ba_0.8Sr_0.2FeO_3-δ Yu-Xuan Liu(刘宇轩), Zhe-Hong Liu(刘哲宏), Xu-Bin Ye(叶旭斌), Xu-Dong Shen(申旭东), Xiao Wang(王潇), Bo-Wen Zhou(周博文), Guang-Hui Zhou(周光辉), You-Wen Long(龙有文). Chin. Phys. B, 2019, 28(6): 068104.
[9]	Antiferromagnetic interlayer coupling of (111)-oriented La_0.67Sr_0.33MnO₃/SrRuO₃ superlattices Hui Zhang(张慧), Jing Zhang(张静), Jin-E Zhang(张金娥), Fu-Rong Han(韩福荣), Hai-Lin Huang(黄海林), Jing-Hua Song(宋京华), Bao-Gen Shen(沈保根), Ji-Rong Sun(孙继荣). Chin. Phys. B, 2019, 28(3): 037501.
[10]	Investigation of magnetization reversal process in pinned CoFeB thin film by in-situ Lorentz TEM Ke Pei(裴科), Wei-Xing Xia(夏卫星), Bao-Min Wang(王保敏), Xing-Cheng Wen(文兴成), Ping Sheng(盛萍), Jia-Ping Liu(刘家平), Xin-Cai Liu(刘新才), Run-Wei Li(李润伟). Chin. Phys. B, 2018, 27(4): 047502.
[11]	Recent progress on magnetic-field studies on quantum-spin-liquid candidates Zhen Ma(马祯), Kejing Ran(冉柯静), Jinghui Wang(王靖珲), Song Bao(鲍嵩), Zhengwei Cai(蔡正蔚), Shichao Li(李世超), Jinsheng Wen(温锦生). Chin. Phys. B, 2018, 27(10): 106101.
[12]	Magnetic phase diagrams of Fe-Mn-Al alloy on the Bethe lattice Erhan Albayrak. Chin. Phys. B, 2017, 26(2): 020502.
[13]	Magnetoresistance and exchange bias in high Mn content melt-spun Mn₄₆Ni₄₂Sn₁₁Sb₁ alloy ribbon Qingxue Huang(黄庆学), Fenghua Chen(陈峰华), Mingang Zhang(张敏刚), Xiaohong Xu(许小红). Chin. Phys. B, 2016, 25(5): 057305.
[14]	Size-dependent exchange bias in single phase Mn₃O₄ nanoparticles Song-Wei Wang(王松伟), Xin Zhang(张鑫), Rong Yao(姚蓉), Guang-Hui Rao(饶光辉). Chin. Phys. B, 2016, 25(11): 117502.
[15]	Model of hybrid interfacial domain wall in ferromagnetic/antiferromagnetic bilayers Zhang Wen (章文), Zhai Ya (翟亚), Lu Mu (鹿牧), You Biao (游彪), Zhai Hong-Ru (翟宏如), Caroline G Morgan. Chin. Phys. B, 2015, 24(4): 047502.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Metrics
Related Articles

Asymmetric exchange bias training effect in spin glass (FeAu)/FeNi bilayers

Cite this article:

Online attention