Spin-polarized electron transport and magnetoresistance effect in symmetric parabolic-well magnetic tunneling junction

Jia Xiu-Min; Liu De; Zhang Hong-Mei

doi:10.7498/aps.60.017506

Abstract

We investigated the spin-dependent transmission coefficient and tunneling magnetoresistance in symmetric parabolic-well with two ferromagnetic contacts (F/SPW/F). The quantum size effect and Rashba spin-orbit interaction are discussed simultaneously. The results indicate that the transmission coefficient and tunneling magnetoresistance are periodic function of the parabolic-well width. The oscillation frequencies of the transmission coefficient and tunneling magnetoresistance decrease with the increasing of the parabolic-well depth. The oscillation frequencies of the transmission coefficient and tunneling magnetoresistance increase with the increasing of the Rashba spin-orbit coupling strength. The amplitude and peak-to-valley ratio of the transmission coefficient and tunneling magnetoresistance are strongly dependent on the difference in orientations of the two magnetizations in the left and right ferromagnets.

Keywords:

Authors and contacts

(1)College of Physics and Information Engineering, Hebei Normal University, Shijiazhuang 050016,China;Hebei Advanced Thin Films Laboratory, Shijiazhuang 050016,China; (2)College of Sciences, Hebei University of Science and Technology, Shijiazhuang 050018,China

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[6]	Du J, Wang S X, Yuan A G 2010 Acta Phys. Sin. 59 2767 (in Chinese) [杜坚、王素新、袁爱国 2010 59 2767]
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[11]	Matsuyama T, Hu C M, Grundler D, Meier G, Merkt U 2002 Phys. Rev. B 65 155322
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[20]	Yuen W P 1993 Phys. Rev. B 48 17316
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[22]	Johnson M 1998 Phys. Rev. B 58 9635 Johnson M, Silsbee R H 1988 Phys. Rev. B 37 5326
[23]	Hu C M, Matsuyama T 2001 Phys. Rev. Lett. 87 066803
[24]	Herling G H, Rustgi M L 1992 J. Appl. Phys. 71 796
[25]	Qi X H, Kong X J, Liu J J 1998 Phys. Rev. B 58 10578
[26]	Wu H C, Guo Y, Chen X Y,Gu B L 2003 J. Appl. Phys. 93 5316
[27]	Li Y X, GuoY, Li B Z 2005 Phys. Rev. B 71 012406
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[29]	Liu D, Kong X J 2009 J. Appl. Phys. 105 043703
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[31]	Christen T, Büttiker M 1996 Phys. Rev. Lett. 77 143
[32]	Zenger M, Moser J, Wegscheider W, Weiss D, Dietl T 2004 J. Appl. Phys. 96 2400
[33]	Liu D, Zhang H M 2008 Mod. Phys. Lett. B 22 2667
[34]	Shinobu Ohya, Pham Nam Hai, Masaaki Tanaka 2005 Appl. Phys. Lett. 87 012105
[35]	Pham Nam Hai, Masafumi Yokoyama, Shinobu Ohya, Masaaki Tanaka 2006 Appl. Phys. Lett. 89 242106

Cited By

[1]	Datta S, Das B 1990 Appl. Phys. Lett. 56 665
[2]	Du J, Zhang P, Liu J H, Li J L, Li Y X 2008 Acta Phys. Sin. 57 7221 (in Chinese) [杜坚、张鹏、刘继红、李金亮、李玉现 2008 57 7221]
[3]	Du J, Li C G, Qin F 2009 Acta Phys. Sin. 58 3448 (in Chinese) [杜坚、李春光、秦芳 2009 58 3448]
[4]	Du J, Wang S X, Yang S M 2009 Acta Phys. Sin. 58 7926 (in Chinese) [杜坚、王素新、杨淑敏 2009 58 7926]
[5]	Du J, Wang S X, Yuan A G 2010 Acta Phys. Sin. 59 2760 (in Chinese) [杜坚、王素新、袁爱国 2010 59 2760]
[6]	Du J, Wang S X, Yuan A G 2010 Acta Phys. Sin. 59 2767 (in Chinese) [杜坚、王素新、袁爱国 2010 59 2767]
[7]	Moroz A V, Barnes C H W 1999 Phys. Rev. B 60 14272 Moroz A V, Samokhin K V, Barnes C H W 2000 Phys. Rev. Lett. 84 4164
[8]	Mireles F, Kirczenow G 2002 Phys. Rev. B 66 214415 Mireles F, Kirczenow G 2001 Phys. Rev. B 64 024426
[9]	Mireles F, Kirczenow G 2002 Europhys Lett. 59 107
[10]	Schpers Th, Nitta J, Heersche H B, Takayanagi H 2001 Phys. Rev. B 64 125314
[11]	Matsuyama T, Hu C M, Grundler D, Meier G, Merkt U 2002 Phys. Rev. B 65 155322
[12]	Moser J, Zenger M, Gerl C, Schuh D, Meier R, Chen P, Bayreuther G, Wegscheider W, Weiss D, Lai C H, Huang R T, Kosuth M, Ebert H 2006 Appl. Phys. Lett. 89 162106
[13]	Julliere M 1975 Phys. Lett. A 54 225
[14]	Zhang X D, Li B Z, Sun G, Pu F C 1997 Phys. Rev. B 56 5484
[15]	Zhang X D, Li B Z, Zhang W S, Pu F C 1998 Phys. Rev. B 57 1090
[16]	Xie Z W, Li B Z 2002 Acta Phys. Sin. 51 399 (in Chinese) [谢征微、李伯藏 2002 51 399]
[17]	Jin L, Zhu L, Li L, Xie Z W 2009 Acta Phys. Sin. 58 8577 (in Chinese) [金莲、朱林、李玲、谢征微 2009 58 8577]
[18]	Miller R C, Gossard A C, Kleinman D A, Munteanu O 1984 Phys. Rev. B 29 3740
[19]	Shayegan M, Sajoto T, Santos M, Silvestre C 1988 Appl. Phys. Lett. 53 791
[20]	Yuen W P 1993 Phys. Rev. B 48 17316
[21]	Chiba D, Akiba N, Matsukura F, Ohno Y, Ohno H 2000 Appl. Phys. Lett. 77 1873
[22]	Johnson M 1998 Phys. Rev. B 58 9635 Johnson M, Silsbee R H 1988 Phys. Rev. B 37 5326
[23]	Hu C M, Matsuyama T 2001 Phys. Rev. Lett. 87 066803
[24]	Herling G H, Rustgi M L 1992 J. Appl. Phys. 71 796
[25]	Qi X H, Kong X J, Liu J J 1998 Phys. Rev. B 58 10578
[26]	Wu H C, Guo Y, Chen X Y,Gu B L 2003 J. Appl. Phys. 93 5316
[27]	Li Y X, GuoY, Li B Z 2005 Phys. Rev. B 71 012406
[28]	Liu D, Kong X J 2008 J. Appl. Phys. 104 023707
[29]	Liu D, Kong X J 2009 J. Appl. Phys. 105 043703
[30]	Büttiker M 1993 J. Phys.: Condens Matter 5 9361
[31]	Christen T, Büttiker M 1996 Phys. Rev. Lett. 77 143
[32]	Zenger M, Moser J, Wegscheider W, Weiss D, Dietl T 2004 J. Appl. Phys. 96 2400
[33]	Liu D, Zhang H M 2008 Mod. Phys. Lett. B 22 2667
[34]	Shinobu Ohya, Pham Nam Hai, Masaaki Tanaka 2005 Appl. Phys. Lett. 87 012105
[35]	Pham Nam Hai, Masafumi Yokoyama, Shinobu Ohya, Masaaki Tanaka 2006 Appl. Phys. Lett. 89 242106

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Vol. 60, Issue 1 - 2011-01-05

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