Physics – Condensed Matter – Superconductivity
Scientific paper
2004-02-09
Nature doi:10.1038/nature02931 (2004).
Physics
Condensed Matter
Superconductivity
5 pages, pdf
Scientific paper
10.1038/nature02931
One of the mysteries of modern condenced-matter physics is the nature of the pseudogap state of the superconducting cuprates. Kaminski et al.1 claimed to have observed signatures of time-reversal symmetry breaking in the pseudogap regime in underdoped Bi2Sr2CaCu2O8+d (Bi2212). Here we argue that the observed dichroism is due to the 5x1 superstructure replica of the electronic bands and therefore cannot be considered as evidence for the spontaneous time-reversal symmetry breaking in cuprates.
Borisenko S. V.
Fink Joerg
Knupfer Martin
Koitzsch Andreas
Kordyuk Alexander
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