Domaines
Condensed matter
Type of internship
Expérimental Description
Does at nanoscale a superconductor screens an electric field as well a normal metal ?
For FeSe which is a superconductor with a critical temperature of 14K, the theory predicts a huge change of penetration depth of electric field between the superconducting and the normal state. This change might be as big as 50%. The goal of this internship is to verify such a prediction which would open up new routes on the control of superconductivity by electric field including for instance the electrical imaging of magnetic vortices (Abrikosov vortices). We will use an Atomic Force Microscope (AFM) working at low temperature in the electrostatic and Kevin probe modes to directly access to the capacitance. This project is a collaboration with Prof. Bertrand Reulet at the University of Sherbrooke (Canada).
Contact
Marco Aprili