Off-Diagonal Nonmagnetic Disorder in s- and d-Wave Superconductors

• Authors: M Michalik , K Wysokiński
• Languages of publication: EN

Abstracts

EN

The previously developed approach to study off-diagonal disorder has been extended and applied to both s- and d-wave superconductors. The derived equations allow the self-consistent solution of the problem. For a special case of negative U centres embedded in non-superconducting host we have calculated their critical concentration for the appearance of superconductivity and found it equal to≈0.4. For x>x_{cr} the order parameter continuously increases to its maximal value at x=1.

Keywords

EN

71.10.-w; 71.23.-k; 74.20.-z

Discipline

• 74.20.-z: Theories and models of superconducting state
• 71.10.-w: Theories and models of many-electron systems
• 71.23.-k: Electronic structure of disordered solids

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2006
• Volume: 109
• Issue: 4-5
• Pages: 623-626

Dates

published

2006-04

received

2005-09-25

Contributors

author

M Michalik

• Institute of Physics, M. Curie-Skłodowska University, Radziszewskiego 10, 20-031 Lublin, Poland

author

K Wysokiński

• Institute of Physics, M. Curie-Skłodowska University, Radziszewskiego 10, 20-031 Lublin, Poland

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Identifiers

DOI

10.12693/APhysPolA.109.623