Ionic-liquid-gating induced protonation and superconductivity in FeSe, FeSe0.93S0.07, ZrNCl, 1T-TaS2 and Bi2Se3

Yi Cui; Ze Hu; Jin Shan Zhang; Wen Long Ma; Ming Wei Ma; Zhen Ma; Cong Wang; Jia Qiang Yan; Jian Ping Sun; Jin Guang Cheng; Shuang Jia; Yuan Li; Jin Sheng Wen; He Chang Lei; Pu Yu; Wei Ji; Wei Qiang Yu

doi:10.1088/0256-307X/36/7/077401

Ionic-liquid-gating induced protonation and superconductivity in FeSe, FeSe_0.93S_0.07, ZrNCl, 1T-TaS₂ and Bi₂Se₃

Yi Cui, Ze Hu, Jin Shan Zhang, Wen Long Ma, Ming Wei Ma, Zhen Ma, Cong Wang, Jia Qiang Yan, Jian Ping Sun, Jin Guang Cheng, Shuang Jia, Yuan Li, Jin Sheng Wen, He Chang Lei, Pu Yu, Wei Ji, Wei Qiang Yu

Correlated Electron Materials

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Abstract

We report protonation in several compounds by an ionic-liquid-gating method, under optimized gating conditions. This leads to single superconducting phases for several compounds. Non-volatility of protons allows post-gating magnetization and transport measurements. The superconducting transition temperature 𝑇c is enhanced to 43.5K for FeSe0.93S0.07, and 41K for FeSe after protonation. Superconducting transitions with 𝑇c 15K for ZrNCl, 7.2K for 1𝑇-TaS2, and 3.8K for Bi2Se3 are induced after protonation. Electric transport in protonated FeSe0.93S0.07 confirms high-temperature superconductivity. Our 1H nuclear magnetic resonance (NMR) measurements on protonated FeSe1−𝑥S𝑥 reveal enhanced spin-lattice relaxation rate 1/1𝑇1 with increasing 𝑥, which is consistent with the LDA calculations that H+ is located in the interstitial sites close to the anions.

Original language	English
Article number	077401
Journal	Chinese Physics Letters
Volume	36
Issue number	7
DOIs	https://doi.org/10.1088/0256-307X/36/7/077401
State	Published - 2019

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Cui, Y., Hu, Z., Zhang, J. S., Ma, W. L., Ma, M. W., Ma, Z., Wang, C., Yan, J. Q., Sun, J. P., Cheng, J. G., Jia, S., Li, Y., Wen, J. S., Lei, H. C., Yu, P., Ji, W., & Yu, W. Q. (2019). Ionic-liquid-gating induced protonation and superconductivity in FeSe, FeSe_0.93S_0.07, ZrNCl, 1T-TaS₂ and Bi₂Se₃ Chinese Physics Letters, 36(7), Article 077401. https://doi.org/10.1088/0256-307X/36/7/077401

@article{65d8cc5dcd7e48dd88bf1064481152ba,

title = "Ionic-liquid-gating induced protonation and superconductivity in FeSe, FeSe0.93S0.07, ZrNCl, 1T-TaS2 and Bi2Se3 ",

abstract = "We report protonation in several compounds by an ionic-liquid-gating method, under optimized gating conditions. This leads to single superconducting phases for several compounds. Non-volatility of protons allows post-gating magnetization and transport measurements. The superconducting transition temperature 𝑇c is enhanced to 43.5K for FeSe0.93S0.07, and 41K for FeSe after protonation. Superconducting transitions with 𝑇c 15K for ZrNCl, 7.2K for 1𝑇-TaS2, and 3.8K for Bi2Se3 are induced after protonation. Electric transport in protonated FeSe0.93S0.07 confirms high-temperature superconductivity. Our 1H nuclear magnetic resonance (NMR) measurements on protonated FeSe1−𝑥S𝑥 reveal enhanced spin-lattice relaxation rate 1/1𝑇1 with increasing 𝑥, which is consistent with the LDA calculations that H+ is located in the interstitial sites close to the anions.",

author = "Yi Cui and Ze Hu and Zhang, {Jin Shan} and Ma, {Wen Long} and Ma, {Ming Wei} and Zhen Ma and Cong Wang and Yan, {Jia Qiang} and Sun, {Jian Ping} and Cheng, {Jin Guang} and Shuang Jia and Yuan Li and Wen, {Jin Sheng} and Lei, {He Chang} and Pu Yu and Wei Ji and Yu, {Wei Qiang}",

year = "2019",

doi = "10.1088/0256-307X/36/7/077401",

language = "English",

volume = "36",

journal = "Chinese Physics Letters",

issn = "0256-307X",

publisher = "IOP Publishing",

number = "7",

}

Cui, Y, Hu, Z, Zhang, JS, Ma, WL, Ma, MW, Ma, Z, Wang, C, Yan, JQ, Sun, JP, Cheng, JG, Jia, S, Li, Y, Wen, JS, Lei, HC, Yu, P, Ji, W & Yu, WQ 2019, 'Ionic-liquid-gating induced protonation and superconductivity in FeSe, FeSe_0.93S_0.07, ZrNCl, 1T-TaS₂ and Bi₂Se₃ ', Chinese Physics Letters, vol. 36, no. 7, 077401. https://doi.org/10.1088/0256-307X/36/7/077401

TY - JOUR

T1 - Ionic-liquid-gating induced protonation and superconductivity in FeSe, FeSe0.93S0.07, ZrNCl, 1T-TaS2 and Bi2Se3

AU - Cui, Yi

AU - Hu, Ze

AU - Zhang, Jin Shan

AU - Ma, Wen Long

AU - Ma, Ming Wei

AU - Ma, Zhen

AU - Wang, Cong

AU - Yan, Jia Qiang

AU - Sun, Jian Ping

AU - Cheng, Jin Guang

AU - Jia, Shuang

AU - Li, Yuan

AU - Wen, Jin Sheng

AU - Lei, He Chang

AU - Yu, Pu

AU - Ji, Wei

AU - Yu, Wei Qiang

PY - 2019

Y1 - 2019

N2 - We report protonation in several compounds by an ionic-liquid-gating method, under optimized gating conditions. This leads to single superconducting phases for several compounds. Non-volatility of protons allows post-gating magnetization and transport measurements. The superconducting transition temperature 𝑇c is enhanced to 43.5K for FeSe0.93S0.07, and 41K for FeSe after protonation. Superconducting transitions with 𝑇c 15K for ZrNCl, 7.2K for 1𝑇-TaS2, and 3.8K for Bi2Se3 are induced after protonation. Electric transport in protonated FeSe0.93S0.07 confirms high-temperature superconductivity. Our 1H nuclear magnetic resonance (NMR) measurements on protonated FeSe1−𝑥S𝑥 reveal enhanced spin-lattice relaxation rate 1/1𝑇1 with increasing 𝑥, which is consistent with the LDA calculations that H+ is located in the interstitial sites close to the anions.

AB - We report protonation in several compounds by an ionic-liquid-gating method, under optimized gating conditions. This leads to single superconducting phases for several compounds. Non-volatility of protons allows post-gating magnetization and transport measurements. The superconducting transition temperature 𝑇c is enhanced to 43.5K for FeSe0.93S0.07, and 41K for FeSe after protonation. Superconducting transitions with 𝑇c 15K for ZrNCl, 7.2K for 1𝑇-TaS2, and 3.8K for Bi2Se3 are induced after protonation. Electric transport in protonated FeSe0.93S0.07 confirms high-temperature superconductivity. Our 1H nuclear magnetic resonance (NMR) measurements on protonated FeSe1−𝑥S𝑥 reveal enhanced spin-lattice relaxation rate 1/1𝑇1 with increasing 𝑥, which is consistent with the LDA calculations that H+ is located in the interstitial sites close to the anions.

UR - http://www.scopus.com/inward/record.url?scp=85070744302&partnerID=8YFLogxK

U2 - 10.1088/0256-307X/36/7/077401

DO - 10.1088/0256-307X/36/7/077401

M3 - Article

AN - SCOPUS:85070744302

SN - 0256-307X

VL - 36

JO - Chinese Physics Letters

JF - Chinese Physics Letters

IS - 7

M1 - 077401

ER -

Ionic-liquid-gating induced protonation and superconductivity in FeSe, FeSe_0.93S_0.07, ZrNCl, 1T-TaS₂ and Bi₂Se₃

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