Leiden University Student Repository

Gelling, Wouter (2016)

On investigation of high temperature superconductivity and the origin of ionic liquid gating in La2-xSrxCuO4 and SrTiO3

Bachelor thesis | Natuurkunde (BSc)

Ionic liquid gating experiments have been performed on both La2−xSrxCuO4 and SrTiO3. Superconductivity was induced in initially non superconducting La1.95Sr0.05CuO4 by ionic liquid gating with an upper critical temperature of 15 K. Further investigation revealed that the gating effect in La2−xSrxCuO4 was purely electrochemical, dominated by a faradaic current. Previous ionic liquid gating experiments on SrTiO3 lead to a theory that could explain the effect electrostatically. Further investigation lead to results in conflict with the electrostatic theory.

Ionic liquid gating

Superconductivity

Author

Gelling, Wouter

Faculty

Faculty of Science

Supervisors

Ruitenbeek, Jan van

ECTS Credits

3

Language

en