Electric--field effect on electron-doped infinite-layer Sr${}_{0.88}$La${}_{0.12}$CuO${}_{2+x}$ thin films

Abstract

We have used the electric--field effect to modulate the resistivity of the surface of underdoped Sr${}_{0.88}$La${}_{0.12}$CuO${}_{2+x}$ thin films, allowing opposite modifications of the electron and hole density in the CuO${}_2$ planes, an original situation with respect to conventional chemical doping in electron-doped materials. When the Hall effect indicates a large contribution of a hole band, the electric--field effect on the normal state resistivity is however dominated by the electrons, and the superconducting transition temperature increases when carriers are transfered from holes to electrons.

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Cited by in corpus (2)

• Nodeless superconductivity arising from strong (pi,pi) antiferromagnetism in the infinite-layer electron-doped cuprate Sr1-xLaxCuO2
• Hole-pocket-driven superconductivity and its universal features in the electron-doped cuprates