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Flow-Equation Method for a Superconductor with Magnetic Correlations (1998)

Moca, C. P. ; Crisan, M. ; Tifrea, I.

Springer

Journal of superconductivity 11 (1998), S. 719-721

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ISSN: 1572-9605

Keywords: 2D superconductors ; flow equations ; magnetic correlations

Source: Springer Online Journal Archives 1860-2000

Topics: Electrical Engineering, Measurement and Control Technology , Physics

Notes: Abstract The flow equation method has been used to calculate the energy of single impurity in a superconductor for the Anderson model with U≠0. We showed that the energy of the impurity depends only on the Δ R 2 (renormalized order parameter), which depends on the renormalized Hubbard repulsion U R. For a strong Hubbard repulsion U R = U and ΔR = ΔI the effect of the s–d interactions are nonrelevant, a result that is expected for this model.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1023/A:1022637022219

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