Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/6574

In-gap bound states induced by nonmagnetic impurities in two-band s(+/-) superconductors

Authors Ng, T. K.
Avishai, Y.
Issue Date 2009
Source Physical Review B, v. 80, (10), 2009, SEP, article number 104504
Summary The physics of single nonmagnetic impurity immersed in a two-band s-wave superconductor with relative phase delta not equal 0 between its two order parameters is studied and elucidated. It is shown that midgap bound states are always induced by nonmagnetic impurities when delta = pi (s(+/-)-wave superconductors). These bound states emerge as a consequence of the topological nature of the corresponding Bogoliubov-de Gennes equation.
Subjects
ISSN 1098-0121
Rights Physical Review B © copyright (2009) American Physical Society. The Journal's web site is located at http://prb.aps.org
Language English
Format Article
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