Electric-field-induced superconductivity detected by magnetization measurements of an electric-double-layer capacitor

Yuichi Kasahara, Takahiro Nishijima, Tatsuya Sato, Yuki Takeuchi, Jianting Ye, Hongtao Yuan, Hidekazu Shimotani, Yoshihiro Iwasa

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


We report evidence for superconductivity induced by the application of strong electric fields onto the surface of a band insulator, ZrNCl, provided by the observation of a shielding diamagnetic signal. We introduced an electric-double-layer capacitor configuration and in situ magnetization measurements at low temperatures as a method to detect the novel electric-field-induced superconducting state. The results showed excellent agreement with a previous report using a transistor configuration, demonstrating that the present technique is a novel method for investigating the nonequilibrium phase induced by electric fields.

Original languageEnglish
Article number023708
Journaljournal of the physical society of japan
Issue number2
Publication statusPublished - 2011 Feb
Externally publishedYes


  • Electric-double-layer capacitor
  • Electric-field-induced superconductivity

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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