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A theoretical study of tunnelling conductance in ferromagnet/ PrOs4Sb12 junctions

  • Guo-Ya SunEmail author
  • Hai Lin
  • M. Y. Zeng
  • Yu-Hua Wen
  • Chen-Xu Wu
Solid and Condensed State Physics
  • 50 Downloads

Abstract.

The tunnelling conductance spectra of ferromagnet/PrOs4Sb12 junctions are theoretically investigated by using the Blonder-Tinkham-Klapwijk theory. Three pairs of possible candidate for the pairing symmetry of superconducting energy gap of the recently discovered heavy-fermion unconventional superconductor PrOs4Sb12 are chosen for calculation. We have studied the spin-polarization effect on the conductance spectra, with respect to different strength of ferromagnetism of the ferromagnet and different strength of the interface barrier. Moreover, we have discussed the influence of nodal structures of the superconducting energy gap on the conductance spectra. Different features of the tunnelling conductance spectra were got, which may serve as useful theoretical comparisons for future experiments.

Keywords

Spectroscopy Neural Network State Physics Complex System Nonlinear Dynamics 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. E.D. Bauer, N.A. Frederick, P.-C. Ho, V.S. Zapf, M.B. Maple, Phys. Rev. B \({\bf 65}\), 100506(R) (2002) Google Scholar
  2. R. Vollmer, A. Faisst, C. Pfleiderer, H.v. Lohneysen, E.D. Bauer, P.-C. Ho, V.S. Zapf, M.B. Maple, Phys. Rev. Lett. \({\bf 90}\), 057001 (2003) Google Scholar
  3. N. Oeschler, P. Gegenwart, F. Steglich, N.A. Frederick, E.D. Bauer, M.B. Maple, Acta Phys. Pol. B 34, 959 (2003)Google Scholar
  4. K. Izawa, Y. Nakajima, J. Goryo, Y. Matsuda, S. Osaki, H. Sugawara, H. Sato, P. Thalmeier, K. Maki, Phys. Rev. Lett. 90, 117001 (2003) Google Scholar
  5. M.B. Maple, P.-C. Ho, V.S. Zapf, N.A. Frederick, E.D. Bauer, W.M. Yuhasz, F.M. Woodward, J.W. Lynn, J. Phys. Soc. Jpn 71 (Suppl.), 23 (2002) Google Scholar
  6. H. Kotegawa, M. Yogi, Y. Imamura, Y. Kawasaki, G.-q. Zheng, Y. Kitaoka, S. Ohsaki, H. Sugawara, Y. Aoki, H. Sato, Phys. Rev. Lett. 90, 027001 (2003)Google Scholar
  7. Y. Asano, Y. Tanaka, Y. Matsuda, S. Kashiwaya, Phys. Rev. B 68, 184506 (2003)Google Scholar
  8. Jun Goryo, Phys. Rev. B 67, 184511 (2003)Google Scholar
  9. K. Maki, P. Thalmeier, Q. Yuan, K. Izawa, Y. Matsuda, cond-mat/0212090 Google Scholar
  10. Y. Aoki, T. Namiki, S. Osaki, S.R. Saha, H. Sugawara, H. Sato, J. Phys. Soc. Jpn 71, 2098 (2002) Google Scholar
  11. D.L. Cox, A. Zawadowski, Adv. Phys. 47, 599 (1998)Google Scholar
  12. S. Kashiwaya, Y. Tanaka, Rep. Prog. Phys. 63, 1641 (2000) Google Scholar
  13. Y. Tanaka, S. Kashiwaya, Phys. Rev. Lett. 74, 3451 (1995) Google Scholar
  14. S. Kashiwaya, Y. Tanaka, N. Yoshida, M.R. Beasley, Phys. Rev. B 60, 3572 (1999) Google Scholar
  15. J.X. Zhu, B. Friedman, C.S. Ting, Phys. Rev. B 59, 9558 (1999)Google Scholar
  16. I. Zutic, O.T. Valls, Phys. Rev. B 60, 6320 (1999) Google Scholar
  17. A.A. Golubov, Physica C 46, 326 (1999)Google Scholar
  18. I.I. Mazin, Phys. Rev. Lett. 83, 1427 (1999) Google Scholar
  19. I.I. Mazin, A.A. Golubov, B. Nadgorny, J. Appl. Phys. 89, 7576 (2001)Google Scholar
  20. G.E. Blonder, M. Tinkham, T.M. Klapwijk, Phys. Rev. B 25, 4515 (1982)Google Scholar
  21. M.J.M. de Jong, C.W.J. Beenakker, Phys. Rev. Lett. 74, 1657 (1995)Google Scholar
  22. P.G. de Gennes, Superconductivity of Metals and Alloys (Benjamin, New York, 1996) Google Scholar
  23. C. Bruder, Phys. Rev. B 41, 4017 (1990)Google Scholar
  24. D.E. MacLaughlin, J.E. Sonier, R.H. Heffner, O.O. Bernal, Ben-Li Young, M.S. Rose, G.D. Morris, E.D. Bauer, T.D. Do, M.B. Maple, Phys. Rev. Lett. 89, 157001 (2002)Google Scholar
  25. R.J. Soulen Jr., J.M. Byers, M.S. Osofsky, B. Nadgorny, T. Ambrose, S.F. Cheng, P.R. Broussard, C.T. Tanaka, J. Nowak, J.S. Moodera, A. Barry, J.M.D. Coey, Science 282, 85 (1998)Google Scholar
  26. R.J. Soulen, Jr., M.S. Osofsky, B. Nadgorny, T. Ambrose, P. Broussard, S.F. Cheng, J. Byers, C.T. Tanaka, J. Nowack, J. S. Moodera, G. Laprade, A. Barry, M.D. Coey, J. Appl. Phys. 85, 4589 (1999)Google Scholar
  27. S.K. Upadhyay, A. Palanisami, R.N. Louie, R.A. Buhrman, Phys. Rev. Lett. 81, 3247 (1998)Google Scholar

Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2005

Authors and Affiliations

  • Guo-Ya Sun
    • 1
    Email author
  • Hai Lin
    • 1
  • M. Y. Zeng
    • 1
  • Yu-Hua Wen
    • 1
  • Chen-Xu Wu
    • 1
  1. 1.Department of PhysicsXiamen UniversityXiamenP.R. China

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