Ionic liquid gating of ultra-thinYBa$_2$Cu$_3$O$_{7-x}$ films

TL;DR

This study explores how ionic liquid gating affects the electrical transport properties of ultra-thin YBa₂Cu₃O₇₋ₓ films, revealing insights into the interaction mechanisms and superconducting behavior at various temperatures.

Contribution

It provides a detailed analysis of the effects of ionic liquid gating on ultra-thin YBCO films, highlighting the interaction dynamics and superconducting property modifications.

Findings

High-temperature resistivity dynamics suggest different liquid-film interaction scenarios.

Low-temperature measurements show changes in critical current density and transition temperature.

Comparison indicates deviations from standard YBCO behavior under ionic liquid gating.

Abstract

In this paper, we present a detailed investigation of the self-field transport properties of an ionic liquid gated ultra-thin YBa$_2$Cu$_3$O$_{7-x}$ film. From the high temperature dynamic of the resistivity ($> 220 \textrm{ K}$) different scenarios pertaining to the interaction between the liquid and the thin film are proposed. From the low temperature evolution of $J_{\textrm{c}}$ and $T_{\textrm{c}}$ a comparison between the behavior of our system and the standard properties of YBCO is drawn.