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

doi:10.1143/JPSJ.80.023708

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

SCI - Physics

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

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 language	English
Article number	023708
Journal	Journal of the Physical Society of Japan
Volume	80
Issue number	2
DOIs	https://doi.org/10.1143/JPSJ.80.023708
Publication status	Published - 2011 Feb

Keywords

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

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10.1143/JPSJ.80.023708

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abstract = "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.",

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AU - Kasahara, Yuichi

AU - Nishijima, Takahiro

AU - Sato, Tatsuya

AU - Takeuchi, Yuki

AU - Ye, Jianting

AU - Yuan, Hongtao

AU - Shimotani, Hidekazu

AU - Iwasa, Yoshihiro

PY - 2011/2

Y1 - 2011/2

N2 - 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.

AB - 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.

KW - Electric-double-layer capacitor

KW - Electric-field-induced superconductivity

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

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Keywords

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