Physics – Condensed Matter – Superconductivity
Scientific paper
2011-11-21
Phys. Rev. B Rapid Communications, 84, 180511(R) (2011)
Physics
Condensed Matter
Superconductivity
4 pages, 4 figures, PRB Rapid Communication
Scientific paper
10.1103/PhysRevB.84.180511
A microscopic scaling relation linking the normal and superconducting states of the cuprates in the presence of a pseudogap is presented using angle-resolved photoemission spectroscopy. This scaling relation, complementary to the bulk universal scaling relation embodied by Homes' law, explicitly connects the momentum-dependent amplitude of the d-wave superconducting order parameter at T\sim0 to quasiparticle scattering mechanisms operative at T\gtrsimTc. The form of the scaling is proposed to be a consequence of the marginal Fermi-liquid phenomenology and the inherently strong dissipation of the normal pseudogap state of the cuprates.
Gu G.-D.
Johnson Paul D.
Pan Z.-H.
Rameau J. D.
Yang H.-B.
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