Three-component electronic structure of the cuprates derived from spectroscopic-imaging scanning tunneling microscopy
| Autor: | Kazuhiro Fujita, S. Uchida, J. W. Alldredge, Hiroshi Eisaki, Kyle McElroy |
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| Rok vydání: | 2012 |
| Předmět: |
Physics
Local density of states Condensed matter physics Spectral density Electronic structure Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention law Condensed Matter::Superconductivity Phenomenological model Quasiparticle Scanning tunneling microscope Pseudogap Energy (signal processing) |
| Zdroj: | Physical Review B. 85 |
| ISSN: | 1550-235X 1098-0121 |
| Popis: | We present a phenomenological model that describes the low energy electronic structure of the cuprate high temperature superconductor Bi${}_{2}$Sr${}_{2}$CaCu${}_{2}$O${}_{8+x}$ as observed by spectroscopic-imaging scanning tunneling microscopy. Our model is based on observations from quasiparticle interference (QPI) measurements and local density of states (LDOS) measurements that span a range of hole densities from critical doping, $p$ $\ensuremath{\sim}$ 0.19, to extremely underdoped, $p$ $\ensuremath{\sim}$ 0.06. The model presented unifies the spectral density of states observed in QPI studies with that of the LDOS. In unifying these two separate measurements, we find that the previously reported phenomena, the Bogoliubov QPI termination, the checkerboard conductance modulations, and the pseudogap are associated with unique energy scales that have features present in both the $\mathbit{q}$-space and LDOS($E$) data sets. |
| Databáze: | OpenAIRE |
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