Title: Electrostatic modulation of the superfluid density in an ultrathin La2-xSrxCuO4 film
Authors: Ruefenacht, A ×
Locquet, Jean-Pierre
Fompeyrine, J
Caimi, D
Martinoli, P #
Issue Date: 2006
Series Title: Physical review letters vol:96 issue:22
Conference: date:Univ Neuchatel, Inst Phys, CH-2000 Neuchatel, Switzerland; IBM Corp, Div Res, Zurich Res Lab, CH-8803 Ruschlikon, Switzerland
Article number: 227002
Abstract: 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 n(s square) of unprecedented strength were observed in measurements of the film kinetic inductance. Although n(s square) 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 T-c proportional to n(s square)(T=0) in the underdoped regime of copper-oxide superconductors.
ISSN: 0031-9007
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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