Publication

Defect-induced changes in the spectral properties of high-T<sub>c</sub> cuprates

Giorgio Margaritondo, László Forró, Helmuth Berger, Marco Grioni, Davor Pavuna
1999
Journal Articles

Abstract

Superconductivity in high-Tc cuprates is particularly sensitive to disorder due to the unconventional d-wave pairing symmetry. We investigated effects of disorder on the spectral properties of Bi2Sr2CaCu2O8+x high-Tc superconductor. We found that already small defect densities suppress the characteristic spectral signature of the superconducting state. The spectral line shape clearly reflects new excitations within the gap, as expected for defect-induced pair breaking. At the lowest defect concentrations the normal state remains unaffected, while increased disorder leads to suppression of the normal quasiparticle peaks

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https://infoscience.epfl.ch/entities/publication/2849cc6d-5233-496c-80e7-4de052344719

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Giorgio Margaritondo, László Forró, Helmuth Berger, Marco Grioni, Davor Pavuna
1999
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/2849cc6d-5233-496c-80e7-4de052344719

About this result

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Defect-induced changes in the spectral properties of high-T<sub>c</sub> cuprates

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