TELECOMMUNICATIONS AND RADIO ENGINEERING - 2011 Vol. 70,
No 14 		 

 

 

 

GIANT MAGNETORESISTANCE OF TWO-BARRIER MAGNETIC TUNNEL JUNCTIONS



N.N. Beletskii & S.A. Borysenko
A. Usikov Institute of Radio Physics and Electronics,
National Academy of Sciences of Ukraine
12, Academician Proskura St., Kharkiv 61085, Ukraine
Address all correspondence to N.N. Beletskii E-mail: beletski@ire.kharkov.ua

Abstract
Giant magnetoresistance of two-barrier magnetic tunnel junctions has been investigated theoretically. The two-barrier magnetic tunnel junctions are investigated within the two-band model of spin-polarized electrons in ferromagnetic electrodes. It is shown that the tunnel magnetoresistance of the two-barrier magnetic tunnel junctions can reach 100 %.

KEY WORDS:tunnel magnetoresistance, two-barrier magnetic tunnel junctions

References

  1. Ryzhii, M. and Ryzhii, V., (2008), Physics and modeling of tera- and nano-devices, New Jersey: World Scientific, - 194 p.
  2. Beletskii, N.N., Borysenko, S.A., and Yakovenko, V.M., (2006), Magnetoresistance and Spin Polarization of Electron Current in Magnetic Tunneling Junctions, Telecommunications and Radio Engineering, 65(6):509-526.
  3. Beletskii, N.N., Berman, G. P., Borysenko, S.A., et al., (2007), Magnetoresistance of magnetic tunnel junctions with low barrier heights, J. Appl. Phys., 101:074305.
  4. Abdulkadyrov, D.V. and Beletskii, N.N., (2009), Electron Tunneling Through a Non-Stationary Potential Barrier, Telecommunications and Radio Engineering, 68(11):983-998.
  5. Beletskii, N.N., Borysenko, S.A., Yakovenko, V.M., et al. (2007), Magnetoresistance in Fe/MgO/Fe magnetic tunnel junctions, Int. J. of High Speed Electronics and Systems, 17(3):593-598.
  6. Zhang, X., Li, B.-Z., Sun, G., Pu, F.-C., (1997), Spin-polarized tunneling and magnetoresistance in ferromagnet/insulator(semiconductor) single and double tunnel junctions subjected to an electric field, Phys. Rev. B, 56(9):5484-5488.
  7. Slonczewski, J.C., (1989), Conductance and exchange coupling of two ferromagnets separated by a tunneling barrier, Phys. Rev. B, 39(10):6995-7002.


pages 1287-1294

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