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Manipulating Transmission of a Two-Dimensional Electron Gas Modulated by Ferromagnetic and Schottky Metal Stripes

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Abstract

We study how the transmission properties of a two-dimensional electron gas, modulated by a ferromagnetic stripe and a Schottky metal (SM) stripe in a parallel configuration, can be modified by manipulating the voltage applied to the SM stripe. Both the transmission coefficient and conductance of the device are found to be strongly dependent on the electric-barrier height induced by an applied voltage under the SM stripe. Thus, transmission properties of electrons in the device can be conveniently tailored by means of tuning this applied voltage.

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References

  1. A. Matulis, F.M. Peeters and P. Vasilopoulos, Wave-Vector-Dependent Tunneling Through Magnetic Barriers, Phys. Rev. Lett., 72 (1994) 1518–1521.

    Article  ADS  Google Scholar 

  2. V. Kubrak, F. Rahman, B.L. Gallagher, P.C. Main, M. Henini, C.H. Marrows and M.A. Howson, Magnetoresistance of a Two-Dimensional Electron Gas Due to a Single Magnetic Barrier and Its Use for Nanomagnetometry, Appl. Phys. Lett., 74 (1999) 2507–2509.

    Article  ADS  Google Scholar 

  3. T. Vancura, T. Ihn, S. Broderick, K. Ensslin, W. Wegscheider and M. Bichler, Electron Transport in a Two-Dimensional Electron Gas with Magnetic Barriers, Phys. Rev. B, 62 (2000) 5074–5078.

    Article  ADS  Google Scholar 

  4. G. Papp and F.M. Peeters, Spin Filtering in a Magnetic–Electric Barrier Structure, Appl. Phys. Lett., 78(3) (2001) 2184.

    Google Scholar 

  5. M.W. Lu, Electron-Spin Polarization in Anti-parallel Double δ-Magnetic-Barrier Nanostructures, Appl. Surf. Sci., 252 (2005) 1747–1753.

    Article  ADS  Google Scholar 

  6. M.W. Lu, Spin Polarization of Two-Dimensional Electron Gas in a Hybrid Magnetic–Electric Barrier, Solid State Commun., 134 (2005) 683–688.

    Article  ADS  Google Scholar 

  7. H.Z. Xu and Y. Okada, Does a Magnetic Barrier or a Magnetic–Electric Barrier Structure Possess any Spin Polarization and Spin Filtering Under Zero Bias?, Appl. Phys. Lett., 79(3) (2001) 3119.

    Google Scholar 

  8. G. Papp and F.M. Peeters, Erratum: Spin Filtering in a Magnetic–Electric Barrier Structure [Appl. Phys. Lett. 78 (2001) 2184 ], Appl. Phys. Lett., 79(1) (2001) 3198.

  9. F. Zhai, H.Q. Xu and Y. Guo, Tunable Spin Polarization in a Two-Dimensional Electron Gas Modulated by a Ferromagnetic Metal Stripe and a Schottky Metal Stripe, Phys. Rev. B, 70(6) (2004) 085308.

    Google Scholar 

  10. M.W. Lu, S.Y. Chen and J.R. Xiao, Size- and Voltage-Dependent Spin Polarization in Hybrid Ferromagnetic-Schottky-Metal and Semiconductor Nanostructure, Solid State Commun., 150 (2010) 1409–1412.

    Article  Google Scholar 

  11. J.D. Lu, Y.B. Li, M.J. Yun and W. Zheng, A Bias-Tunable Electron-Spin Filter Based on a Two-Dimensional Electron Gas Modulated by Ferromagnetic-Schottky Metal Stripes, Phys. Lett. A, 375 (2011) 1534–1537.

    Article  ADS  Google Scholar 

  12. Y. Jiang, M.B.A. Jalil and T.S. Low, Comment on Spin Filtering in a Magnetic–Electric Barrier Structure [Appl. Phys. Lett. 78 (2001) 2184 ], Appl. Phys. Lett., 80(2) (2002) 1673.

    Google Scholar 

  13. B. Wang, Y. Guo, X.Y. Chen and B.L. Gu, Spin Polarization Induced by an External Electric Field in a Hybrid Magnetic–Electric Barrier, J. Appl. Phys., 92(3) (2002) 4138.

    Google Scholar 

  14. G.L. Zhang, M.W. Lu, Y. Tang and S.Y. Chen, Giant Magnetoresistance Effect Realized by Depositing Nanosized Ferromagnetic and Schottky Stripes on a Semiconductor Heterostructure, J. Phys. Condens. Matter, 20(5) (2008) 335221.

    Google Scholar 

  15. J.F. Song, J.P. Bird and Y. Ochiai, Manipulating the Transmission of a Two-Dimensional Electron Gas via Spatially Varying Magnetic Fields, Appl. Phys. Lett., 86(3) (2005) 062106.

    Google Scholar 

  16. Y. Guo, F. Zhai, B.L. Gu and Y. Kawazoe, Resonant Enhancement and Negative Differential Resistances in Hybrid Magnetic–Electric Barrier Structures, Phys. Rev. B, 66(7) (2002) 045312.

    Google Scholar 

  17. K.C. Verma, M. Singh, R.K. Kotnala and N.S. Negi, Ferromagnetism and Ferroelectricity in Highly Resistive Pb0.7Sr0.3(Fe0.012Ti0.988)O3 Nanoparticles and Its Conduction by Variable-Range-Hopping Mechanism, Appl. Phys. Lett., 93 (2008) 072904–072906.

    Article  ADS  Google Scholar 

  18. M. Büttiker, Four-Terminal Phase-Coherent Conductance, Phys. Rev. Lett., 57 (1986) 1761–1764.

    Article  ADS  Google Scholar 

  19. M.W. Lu, L.D. Zhang, Y.X. Jin and X.H. Yan, Spin-Dependent Tunneling in Nanostructures Consisting of Magnetic Barriers, Eur. Phys. J. B, 27 (2002) 565–570.

    Article  ADS  Google Scholar 

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Authors and Affiliations

  1. Department of Electronic Engineering, Hunan University of Science, and Engineering, Yongzhou, 425100, Hunan, People’s Republic of China

    Yong-Hong Kong, Gui-Lian Zhang & Sai-Yan Chen

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  1. Yong-Hong Kong
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  2. Gui-Lian Zhang
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  3. Sai-Yan Chen
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Correspondence to Yong-Hong Kong.

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Kong, YH., Zhang, GL. & Chen, SY. Manipulating Transmission of a Two-Dimensional Electron Gas Modulated by Ferromagnetic and Schottky Metal Stripes. MAPAN 27, 165–168 (2012). https://doi.org/10.1007/s12647-012-0021-1

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  • DOI: https://doi.org/10.1007/s12647-012-0021-1

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