Impurity Resonances and the Origin of the Pseudo-Gap
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| Format: | Artículo científico |
| Language: | en |
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Sociedade Brasileira de Física
2003
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| _version_ | 1876448512353239040 |
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| author | Brian Møller Andersen |
| author_facet | Brian Møller Andersen |
| contents | Impurity Resonances and the Origin of the Pseudo-Gap Brian Møller Andersen Física, Astronomía y Matemáticas We study the structure of resonance states localized around nonmagnetic impurities in the CuO2 planes of the cuprate superconductors within a potential scattering formalism. In particular we show that strong quantum interference effects arise between several impurities. This interference can be utilized to distinguish the dwave superconducting state from the phase with d-density wave order. This is important if the origin of the pseudo-gap state in the underdoped regime of the High Tc superconductors is caused by preformed Cooper pairs or staggered orbital currents. Furthermore impurity interference can be utilized to reveal subdominant superconducting order parameters and to pose further constraints on the potential scattering scenario. 2003 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46413573003 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.4 Vol.33 |
| format | Artículo científico |
| id | redalyc_46413573003 |
| institution | Redalyc |
| language | en |
| publishDate | 2003 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Impurity Resonances and the Origin of the Pseudo-Gap Brian Møller Andersen Física, Astronomía y Matemáticas Impurity Resonances and the Origin of the Pseudo-Gap Brian Møller Andersen Física, Astronomía y Matemáticas We study the structure of resonance states localized around nonmagnetic impurities in the CuO2 planes of the cuprate superconductors within a potential scattering formalism. In particular we show that strong quantum interference effects arise between several impurities. This interference can be utilized to distinguish the dwave superconducting state from the phase with d-density wave order. This is important if the origin of the pseudo-gap state in the underdoped regime of the High Tc superconductors is caused by preformed Cooper pairs or staggered orbital currents. Furthermore impurity interference can be utilized to reveal subdominant superconducting order parameters and to pose further constraints on the potential scattering scenario. 2003 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46413573003 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.4 Vol.33 |
| title | Impurity Resonances and the Origin of the Pseudo-Gap |
| topic | Física, Astronomía y Matemáticas |
| url | https://www.redalyc.org/articulo.oa?id=46413573003 |