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http://hdl.handle.net/1783.1/6574
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| Title: | In-gap bound states induced by nonmagnetic impurities in two-band s± superconductors |
| Authors: | Avishai, Yshai
Ng, Tai-Kai |
| Keywords: | Two-band s-wave superconductors
Multigap superconductors
Nonmagnetic impurities |
| Issue Date: | 1-Sep-2009 |
| Citation: | Physical review B, v. 80, iss. 10, 104504, 1 September 2009 |
| Abstract: | The physics of single nonmagnetic impurity immersed in a two-band s-wave superconductor with relative phase δ≠0 between its two order parameters is studied and elucidated. It is shown that midgap bound states are always induced by nonmagnetic impurities when δ=π (s±-wave superconductors). These bound states emerge as a consequence of the topological nature of the corresponding Bogoliubov-de Gennes equation. |
| Rights: | Physical Review B © copyright (2009) American Physical Society. The Journal's web site is located at http://prb.aps.org |
| URI: | http://hdl.handle.net/1783.1/6574 |
| Appears in Collections: | PHYS Journal/Magazine Articles
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| ingap.pdf | | 151Kb | Adobe PDF | View/Open |
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