Strong perpendicular magnetic anisotropy in Co2FeAl0.5Si0.5 film sandwiched by MgO layers
Wang Sheng (王圣), Li Xiao-Qi (李晓其), Bai Li-Juan (白丽娟), Xu Xiao-Guang (徐晓光), Miao Jun (苗君), Jiang Yong (姜勇)
State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
Abstract Co2FeAl0.5Si0.5 (CFAS) based multilayers sandwiched by MgO layers have been deposited and annealed at different temperatures. Perpendicular magnetic anisotropy (PMA) with the magnetic anisotropy energy density Ku ≈ 2.5×106 erg/cm3 and the coercivity Hc=363 Oe has been achieved in the Si/SiO2/MgO (1.5 nm)/CFAS (2.5 nm)/MgO (0.8 nm)/Pt (5 nm) film annealed at 300 ℃. The strong PMA is mainly due to the top MgO layer. The structure can be used as top magnetic electrodes in half-metallic perpendicular magnetic tunnel junctions.
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 50831002, 51271020, 50971025, 51071022, and 11174031), the National Basic Research Program of China (Grant No. 2012CB932702), PCSIRT, Beijing Nova Program, China (Grant No. 2011031), the Beijing Municipal Natural Science Foundation, China (Grant No. 2102032), and the Fundamental Research Funds for the Central Universities, China.
Wang Sheng (王圣), Li Xiao-Qi (李晓其), Bai Li-Juan (白丽娟), Xu Xiao-Guang (徐晓光), Miao Jun (苗君), Jiang Yong (姜勇) Strong perpendicular magnetic anisotropy in Co2FeAl0.5Si0.5 film sandwiched by MgO layers 2013 Chin. Phys. B 22 057305
[1]
Liu J, Zhan R, Li L and Dong H N 2011 Chin. Phys. B 20 077101
[2]
Jin Y J, Lee J I and Li G N 2010 Chin. Phys. B 19 097102
[3]
Graf T, Parkin S S P and Felser C 2011 IEEE Trans. Magn. 47 367
[4]
Wang H W, Sukegawa H, Shan R, Mitani S and Inomata K 2009 Appl. Phys. Lett. 95 182502
[5]
Fecher G H and Felser C 2007 J. Phys. D: Appl. Phys. 40 1582
[6]
Ding Y F, Judy J H and Wang J P 2005 J. Appl. Phys. 97 10J117
[7]
Lv Q L, Cai J W, Pan H Y and Han B S 2010 Appl. Phys. Exp. 3 093003
[8]
Ikeda S, Miura K, Yamamoto H, Mizunuma K, Gan H D, Endo M, Kanai S, Hayakawa J, Matsukura F and Ohno H 2010 Nat. Mater. 9 721
[9]
Mizukami S, Watanabe D, Oogane M, Ando Y, Miura Y, Shirai M and Miyazaki T 2009 J. Appl. Phys. 105 07D306
[10]
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
[11]
Li X Q, Xu X G, Wang S, Wu Y, Zhang D L, Miao J and Jiang Y 2012 Chin. Phys. B 21 107307
[12]
Wen Z C, Sukegawa H, Mitani S and Inomata K 2011 Appl. Phys. Lett. 98 242507
[13]
Manchon A, Ducruet C, Lombard L, Auffret S, Rodmacq B, Dieny B, Pizzini S, Vogel J, Uhlir V, Hochstrasser M and Panaccione G 2008 J. Appl. Phys. 104 043914
[14]
Shimabukuro R, Nakamura K, Akiyama T and Ito T 2010 Physica E 42 1014
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.
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.