Two-component energy spectrum of cuprates in the pseudogap phase and its evolution with temperature and at charge ordering

Abstract

In the search for mechanisms of high-temperature superconductivity it is critical to know the electronic spectrum in the pseudogap phase from which superconductivity evolves. The lack of angle-resolved photoemission data for every cuprate family precludes an agreement as to its structure, doping and temperature dependence and the role of charge ordering. Here we show that, in the entire Fermi-liquid-like regime that is ubiquitous in underdoped cuprates, the spectrum consists of holes on the Fermi arcs and an electronic pocket. We argue that experiments on the Hall coefficient identify the latter as a permanent feature at doped hole concentration x>0.08-0.10, in contrast to the idea of the Fermi surface reconstruction via charge ordering. The longstanding issue of the origin of the negative Hall coefficient in YBCO and Hg1201 at low temperature is resolved: the electronic contribution prevails as mobility of the latter (evaluated by the Dingle temperature) becomes temperature independent, while the mobility of holes scattered by the short-wavelength charge density waves decreases.

arXiv comment16 pages, 3 figures, title changed, final manuscript, close to the published version, Scientific Reports 5, (2015)

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Cited by in corpus (5)

• Inhomogeneity of charge density wave order and quenched disorder in a high Tc superconductor
• Superconductivity in Quantum Complex Matter: the Superstripes Landscape
• Unified model of the Hall effect from insulator to overdoped compounds in cuprate superconductors
• The role of the pseudogap in cuprate superconductors revealed by the Hall effect
• Complex lattice and charge inhomogeneity favoring quantum coherence in high temperature superconductors