• Corpus ID: 118298810

Indications of an Electronic Phase Transition in 2D YBa2Cu3O7-x Induced by Electrostatic Doping

@article{Leng2011IndicationsOA,
  title={Indications of an Electronic Phase Transition in 2D YBa2Cu3O7-x Induced by Electrostatic Doping},
  author={Xian Leng and Javier Garc{\'i}a‐Barriocanal and Boyi Yang and Yeonbae Lee and Allen M. Goldman},
  journal={arXiv: Superconductivity},
  year={2011}
}
We successfully tuned an underdoped ultrathin YBa2Cu3O7-x film into the overdoped regime by means of electrostatic doping using an ionic liquid as a dielectric material. This process proved to be reversible. Transport measurements showed a series of anomalous features compared to chemically doped bulk samples and a different two-step doping mechanism for electrostatic doping was revealed. The normal resistance increased with carrier concentration on the overdoped side and the high temperature… 

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