Please wait a minute...
Chin. Phys. B, 2012, Vol. 21(10): 107307    DOI: 10.1088/1674-1056/21/10/107307
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

Magnetic properties of a Pt/Co2FeAl/MgO structure with perpendicular magnetic anisotropy

Li Xiao-Qi, Xu Xiao-Guang, Wang Sheng, Wu Yong, Zhang De-Lin, Miao Jun, Jiang Yong
State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
Abstract  Microstructures and magnetic properties of Ta/Pt/Co2FeAl (CFA)/MgO multilayers are studied to understand perpendicular magnetic anisotropy (PMA) of half-metallic full-Heusler alloy films. PMA is realized in a 2.5-nm CFA film with B2-ordered structure observed by a high resolution transmission electron microscope. It is demonstrated that a high quality interface between the ferromagnetic layer and oxide layer is not essential for PMA. The conversions between in-plane anisotropy and PMA are investigated to study the dependence of magnetic moment on temperature. At the intersection points, the decreasing slope of the saturation magnetization (Ms) changes because of the conversions. The dependence of Ms on the annealing temperature and MgO thickness is also studied.
Keywords:  half-metallic      perpendicular magnetic anisotropy  
Received:  24 April 2012      Revised:  15 May 2012      Accepted manuscript online: 
PACS:  73.43.Qt (Magnetoresistance)  
  72.25.Ba (Spin polarized transport in metals)  
  68.35.Ct (Interface structure and roughness)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 50831002, 50971025, 51071022, and 11174031), the National Basic Research Program of China (Grant No. 2012CB932702), the Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT), the Beijing Nova Program (Grant No. 2011031), the Beijing Municipal Natural Science Foundation, China (Grant No. 2102032), and the Fundamental Research Funds for the Central Universities.
Corresponding Authors:  Xu Xiao-Guang     E-mail:  xgxu@ustb.edu.cn

Cite this article: 

Li Xiao-Qi, Xu Xiao-Guang, Wang Sheng, Wu Yong, Zhang De-Lin, Miao Jun, Jiang Yong Magnetic properties of a Pt/Co2FeAl/MgO structure with perpendicular magnetic anisotropy 2012 Chin. Phys. B 21 107307

[1] Moodera J S, Kinder L R, Wong T M and Meservey R 1995 Phys. Rev. Lett. 74 3273
[2] Miyazaki T and Tezuka N 1995 J. Magn. Magn. Mater. 139 L231
[3] Mathon J and Umerski A 2001 Phys. Rev. B 63 220403
[4] Parkin S S P, Kaiser C, Panchula A, Rice P M, Hughes B, Samant M and Yang S H 2004 Nature Mater. 3 862
[5] Yuasa S, Nagahama T, Fukushima A, Suzuki Y and Ando K 2004 Nature Mater. 3 868
[6] Ikeda S, Hayakawa J, Ashizawa Y, Lee Y M, Miura K, Hasegawa H, Tsunoda M, Matsukura F and Ohno H 2008 Appl. Phys. Lett. 93 082508
[7] Julliére M 1975 Phys. Lett. A 54 225
[8] Wang W H, Liu E K, Kodzuka M, Sukegawa H, Wojcik M, Jedryka E, Wu G H, Inomata K, Mitani S and Hono K 2010 Phys. Rev. B 81 140402
[9] Wang W H, Sukegawa H, Shan R, Mitani S and Inomata K 2009 Appl. Phys. Lett. 95 182502
[10] Xu G L, Chen J D, Chen D, Ma J Z, Yu B H and Shi D H 2009 Chin. Phys. B 18 744
[11] Li G N, Jin Y J and Lee J I 2010 Chin. Phys. B 19 097102
[12] Wen Z C, Sukegawa H, Mitani S and Inomata K 2011 Appl. Phys. Lett. 98 192505
[13] Shuto Y, Nakane R, Wang W H, Sukegawa H, Yamamoto S, Tanaka M, Inomata K and Sugahara1 S 2010 Appl. Phys. Express 3 013003
[14] Balke B, Wurmehl S, Fecher G, Felser C and Kübler J 2008 Sci. Technol. Adv. Mater. 9 014102
[15] Picozzi S, Continenza A and Freeman A J 2002 Phys. Rev. B 66 094421
[16] Galanakis, Dederichs P H and Papanikolaou N 2002 Phys. Rev. B 66 174429
[17] Wang W H, Sukegawa H and Inomata K 2010 Appl. Phys. Express 3 093002
[18] Wen Z C, Sukegawa H, Mitani S and Inomata K 2011 Appl. Phys. Lett. 98 242507
[19] Li X Q, Xu X G, Zhang D L, Miao J, Zhan Q, Jalil M B A, Yu G H and Jiang Y 2010 Appl. Phys. Lett. 96 142505
[20] Li X Q, Yin S Q, Liu Y P, Zhang D L, Xu X G, Miao J and Jiang Y 2011 Appl. Phys. Express 4 043006
[21] Nistor L E, Rodmacq B, Auffret S and Dieny B 2009 Appl. Phys. Lett. 94 012512
[22] Xu X G, Zhang D L, Li X Q, Bao J, Jiang Y and Jalil M B A 2009 J. Appl. Phys. 106 123902
[23] Kobayashi K, Umetsu R Y, Kainuma R, Ishida K, Oyamada T, Fujita A and Fukamichi K 2004 Appl. Phys. Lett. 85 4684
[24] Kurt H, Venkatesan M and Coey J M D 2010 J. Appl. Phys. 108 073916
[25] Bordel C, Pizzini S, Vogel J, Mackay K, Voiron J, Galéra R M, Fontaine A, Auric P, Goedkoop J B and Brookes N B 1997 Phys. Rev. B 56 8149
[26] Tezuka N, Ikeda N, Miyazaki A, Sugimoto S, Kikuchi M and Inomata K 2006 Appl. Phys. Lett. 89 112514
[27] Gabor M S, Petrisor T Jr, Tiusan C, Hehn M and Petrisor T 2011 Phys. Rev. B 84 134413
[1] 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.
[2] 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.
[3] 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.
[4] 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.
[5] Ultra-low Young's modulus and high super-exchange interactions in monolayer CrN: A promising candidate for flexible spintronic applications
Yang Song(宋洋), Yan-Fang Zhang(张艳芳), Jinbo Pan(潘金波), and Shixuan Du(杜世萱). Chin. Phys. B, 2021, 30(4): 047105.
[6] A first-principles study on zigzag phosphorene nanoribbons terminated by transition metal atoms
Shuai Yang(杨帅), Zhiyong Wang(王志勇), Xueqiong Dai(戴学琼), Jianrong Xiao(肖剑荣), and Mengqiu Long(龙孟秋). Chin. Phys. B, 2021, 30(2): 027305.
[7] 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.
[8] 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.
[9] Exploring ferromagnetic half-metallic nature of Cs2NpBr6 via spin polarized density functional theory
Malak Azmat Ali, G Murtaza, A Laref. Chin. Phys. B, 2020, 29(6): 066102.
[10] Surface states modulated exchange interaction in Bi2Se3/thulium iron garnet heterostructures
Hai-Bin Shi(石海滨), Li-Qin Yan(闫丽琴), Yang-Tao Su(苏仰涛), Li Wang(王力), Xin-Yu Cao(曹昕宇), Lin-Zhu Bi(毕林竹), Yang Meng(孟洋), Yang Sun(孙阳), and Hong-Wu Zhao(赵宏武). Chin. Phys. B, 2020, 29(11): 117302.
[11] Electrically tunable spin diode effect in a tunneling junction of quantum dot
Xukai Peng(彭许凯), Zhengzhong Zhang(张正中). Chin. Phys. B, 2019, 28(12): 127202.
[12] Dependence of switching process on the perpendicular magnetic anisotropy constant in P-MTJ
Mao-Sen Yang(杨茂森), Liang Fang(方粮), Ya-Qing Chi(池雅庆). Chin. Phys. B, 2018, 27(9): 098504.
[13] Electronic and mechanical properties of half-metallic half-Heusler compounds CoCrZ (Z=S, Se, and Te)
Hai-Ming Huang(黄海铭), Chuan-Kun Zhang(张传坤), Ze-Dong He(贺泽东), Jun Zhang(张俊), Jun-Tao Yang(杨俊涛), Shi-Jun Luo(罗时军). Chin. Phys. B, 2018, 27(1): 017103.
[14] First-principles calculation of the structural,electronic,and magnetic properties of cubic perovskite RbXF3(X=Mn,V,Co,Fe)
Muhammad Raza ur rehman Hashmi, Muhammad Zafar, M Shakil, Atif Sattar, Shabbir Ahmed, S A Ahmad. Chin. Phys. B, 2016, 25(11): 117401.
[15] Effect of Mo capping layers thickness on the perpendicular magnetic anisotropy in MgO/CoFeB based top magnetic tunnel junction structure
Yi Liu(刘毅), Kai-Gui Zhu(朱开贵), Hui-Cai Zhong(钟汇才), Zheng-Yong Zhu(朱正勇), Tao Yu(于涛), Su-De Ma(马苏德). Chin. Phys. B, 2016, 25(11): 117805.
No Suggested Reading articles found!