Comment on "Anomalous proximity effect in underdoped YBa_2Cu_3O_{6+x} Josephson junctions"

Abstract

In recent photodoping experiments Decca et al. [PRL 85, 3708 (2000)] have observed an unusually long-ranged proximity effect between the superconducting and insulating phases of YBCO. Here we critically examine the claim in that reference that such long range is anomalous. We show that, once the novel nature of the experiments has been properly accounted for, the conventional theory of the proximity effect predicts comparably long ranges.

RevTeX4, 1 page, 1 figure. Accepted by Phys. Rev. Lett

References in corpus (1)

• Colossal Effects in Transition Metal Oxides Caused by Intrinsic Inhomogeneities

Cited by in corpus (6)

• Superconducting Puddles and "Colossal'' Effects in Underdoped Cuprates
• The Meissner effect in a strongly underdoped cuprate above its critical temperature
• The One-Particle Spectral Function and the Local Density of States in a Phenomenological Mixed-Phase Model for High-Temperature Superconductors
• Theory of giant and nil proximity effects in cuprate semiconductors
• Low-temperature proximity effect in clean metals
• Density-functional description of superconducting and magnetic proximity effects across a tunneling barrier