Three-component electronic structure of the cuprates derived from spectroscopic-imaging scanning tunneling microscopy

Article

关键词: QUASI-PARTICLE INTERFERENCE;    SUPERCONDUCTING GAP;    VORTEX CORES;    SCATTERING;    NEMATICITY;    DENSITY;    STATES;   

DOI  :  10.1103/PhysRevB.85.174501

来源: SCIE

【 摘 要 】

We present a phenomenological model that describes the low energy electronic structure of the cuprate high temperature superconductor Bi2Sr2CaCu2O8+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 similar to 0.19, to extremely underdoped, p similar to 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 q-space and LDOS(E) data sets.

【 授权许可】

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