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2008 | 114 | 1 | 149-152
Article title

s-Wave Order Parameter in the Presence of a Momentum-Dependent Impurity Scattering Potential

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EN
Abstracts
EN
Momentum dependence of the impurity potential leads to the anisotropy of a local density of states in isotropic s-wave superconductors. We complete this result by discussing the influence of a momentum-dependent impurity potential on the s-wave order parameter. The scattering process is considered in the T-matrix approximation, and the model impurity potential consists of two separate terms representing isotropic (on-site) and anisotropic (momentum-dependent) parts of the potential. We show that the effect of the isotropic part on the order parameter is local whereas the influence of the momentum-dependent term is nonlocal.
Keywords
EN
Contributors
author
  • Institute of Physics, Politechnika Wrocławska, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
author
  • Institute of Physics, Politechnika Wrocławska, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
author
  • Institute of Physics, Politechnika Wrocławska, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
References
  • 1. P. Pisarski, G. Harań, Physica C 390, 270 (2003)
  • 2. A. Maciag, P. Pisarski, G. Harań, Acta Phys. Pol. B 34, 479 (2003)
  • 3. P. Pisarski, G. Harań, Phys. Status Solidi B 242, 426 (2005)
  • 4. P.W. Anderson, J. Phys. Chem. Solids 11, 26 (1959)
  • 5. L. Capriotti, D.J. Scalapino, R.D. Sedgewick, Phys. Rev. B 68, 014508 (2003)
  • 6. A.L. Fetter, Phys. Rev. 140, A1921 (1965)
  • 7. T. Xiang, J.M. Wheatley, Phys. Rev. B 51, 11721 (1995)
  • 8. G. Litak, Physica B 359-361, 566 (2005)
  • 9. A. Ghosal, M. Randeria, N. Trivedi, Phys. Rev. Lett. 81, 3940 (1998)
  • 10. G. Harań, A.D.S. Nagi, Phys. Rev. B 58, 12441 (1998)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv114n120kz
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