The doping dependence of T* – what is the real high-Tc phase diagram?
By J. Tallon, J. Loram. 2000
507 citations recorded by the source corpus.
Abstract Underdoped high- T c superconductors are frequently characterised by a temperature, T * , below which the normal-state pseudogap opens. Two different “phase diagrams” based on the doping ( p ) dependence of T * are currently considered: one where T * falls to zero at a critical doping state and the other where T * merges with T c in the overdoped region. By examining the temperature dependence of the NMR Knight shift and relaxation rate, entropy, resistivity, infrared conductivity, Raman scattering, ARPES and tunnelling data, it is concluded that the second scenario is not at all supported. Neither can one distinguish a small and a large pseudogap as is often done. T * is an energy scale, which falls abruptly to zero at p =0.19. Colour figures are available at cond-mat/0005063.
Subfields: Condensed Matter Physics, Electronic, Optical and Magnetic Materials
View Paper: https://www.semanticscholar.org/paper/78a6c62650b22289c42c751abff0a6c68bf09e65
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In Condensed Matter Physics
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Citations in the corpus
- Andreev–Saint-James reflections: A probe of cuprate superconductors (2004, background): “There exists converging experimental evidence from NMR spin susceptibility measurements (Alloul et al., 1989), heat capacity measurements (Tallon and Loram, 2001), ARPES (Ding et al., 1996), optical measurements (see the review by Timusk and Statt, Timusk and Statt 1999) and from tunneling…”
- Order and quantum phase transitions in the cuprate superconductors (2002, background): “(Aeppli et al., 1997) There have also been several recent experimental proposals for a quantum critical point in the cuprates at δ ≈ 0.19, linked to anomalous quasiparticle damping (Valla et al., 1999), thermodynamic (Tallon and Loram, 2001), or magnetic (Panagopoulos et al., 2003, 2002) properties.”
- BCS BEC crossover: From high temperature superconductors to ultracold superfluids (2004, methodology): “…s(0;x) / x, at low x. Unusual effects associated with this linear- in-x dependence also show up in other experiments, such as the weight of coherence features in photoemission data (Campuzanoet al., 2004; Damascelliet al., 2003), as well as in thermodynamical signatures (Tallon and Loram, 2001).”
- Hidden order in the cuprates (2000, background): “Superfluid Density Rapid collapse of superfluid density below optimal doping is seen in many experiments [32].”
- Angle-resolved photoemission studies of the cuprate superconductors (2002, unknown): “24See Tallon et al. (1999, 2000); and Tallon and Loram (2001).”