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Protected nodes and the collapse of the Fermi arcs in high Tc cuprates
- Publication Year :
- 2007
- Publisher :
- arXiv, 2007.
-
Abstract
- Angle resolved photoemission on underdoped Bi2Sr2CaCu2O8 reveals that the magnitude and d-wave anisotropy of the superconducting state energy gap are independent of temperature all the way up to Tc. This lack of T variation of the entire k-dependent gap is in marked contrast to mean field theory. At Tc the point nodes of the d-wave gap abruptly expand into finite length ``Fermi arcs''. This change occurs within the width of the resistive transition, and thus the Fermi arcs are not simply thermally broadened nodes but rather a unique signature of the pseudogap phase.<br />Comment: Accepted by Phys. Rev. Lett
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....6cf97fdb93409b57e9b2804069f0e594
- Full Text :
- https://doi.org/10.48550/arxiv.0708.4099