Rapid suppression of the superconducting gap in overdoped Bi2Sr2CaCu2O8+δ

P. J. White; Z. -X. Shen; C. Kim; J. M. Harris; A. G. Loeser; P. Fournier; A. Kapitulnik

doi:10.1103/PhysRevB.54.R15669

← Back to search

Rapid suppression of the superconducting gap in overdoped Bi2Sr2CaCu2O8+δ

P. J. White, Z. -X. Shen, C. Kim, J. M. Harris, A. G. Loeser, P. Fournier, A. Kapitulnik

DOI 10.1103/PhysRevB.54.R15669 · Physical Review B

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

Angle-resolved photoemission experiments have been performed on overdoped Bi2Sr2CaCu2O8+δ. With a modest Tc reduction of about 10%, the size of the superconducting gap decreases by about 35%. The rapid suppression of the superconducting gap is correlated with an almost complete collapse of the normal-state excitation gap and a dramatic evolution of the electronic structure near (π, 0) with doping.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Bi2Sr2CaCu2O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	78	Pressure not reported	unknown
Bi2Sr2CaCu2O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	88	Pressure not reported	unknown