L. Trappeniers, J. Vanacken, et al.
Physica C: Superconductivity and its Applications
By capacitively charging an underdoped ultrathin La2-xSrxCuO4 film with an electric field applied across a gate insulator with a high dielectric constant, relative changes of the areal superfluid density ns□ of unprecedented strength were observed in measurements of the film kinetic inductance. Although ns□ appears to be substantially reduced by disorder, the data provide, for the first time on the same sample, direct compelling evidence for the Uemura relation Tcns□(T=0) in the underdoped regime of copper-oxide superconductors. © 2006 The American Physical Society.
L. Trappeniers, J. Vanacken, et al.
Physica C: Superconductivity and its Applications
J. Fompeyrine, R. Berger, et al.
Applied Physics Letters
E. Fritsch, E. Mächler, et al.
Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
A. Scholl, F. Nolting, et al.
Journal of Applied Physics