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Title: Ionic-Liquid-Gating Induced Protonation and Superconductivity in FeSe, FeSe 0.93S 0.07, ZrNCl, 1 T-TaS 2 and Bi 2Se 3 *

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 T c is enhanced to 43.5 K for FeSe 0.93S 0.07, and 41 K for FeSe after protonation. Superconducting transitions with T c ~ 15 K for ZrNCl, ~7.2 K for 1T-TaS 2, and ~3.8 K for Bi 2Se 3 are induced after protonation. Electric transport in protonated FeSe 0.93S 0.07 confirms high-temperature superconductivity. Our 1H nuclear magnetic resonance (NMR) measurements on protonated FeSe 1-xS x reveal enhanced spin-lattice relaxation rate 1/ 1 T 1 with increasing x, which is consistent with the LDA calculations that H + is located in the interstitial sites close to the anions.

Authors:
 [1];  [2];  [3];  [4];  [4];  [5];  [2];  [6];  [7];  [7];  [8];  [8];  [9];  [2];  [10];  [2];  [2]
  1. North China Electric Power Univ., Beijing (China). School of Mathematics and Physics; Renmin Univ., Beijing (China). Dept. of Physics, and Beijing Key Lab. of Optoelectronic Functional Materials & Micro-nano Devices
  2. Renmin Univ., Beijing (China). Dept. of Physics, and Beijing Key Lab. of Optoelectronic Functional Materials & Micro-nano Devices
  3. North China Electric Power Univ., Beijing (China). School of Mathematics and Physics
  4. Peking Univ., Beijing (China). International Center for Quantum Materials, School of Physics
  5. Nanjing Univ., Nanjing (China). National Lab. of Solid State Microstructures and Dept. of Physics
  6. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
  7. Chinese Academy of Sciences, Beijing (China). Beijing National Lab. for Condensed Matter Physics and Institute of Physics
  8. Peking Univ., Beijing (China). International Center for Quantum Materials, School of Physics; Collaborative Innovation Center of Quantum Matter, Beijing (China)
  9. Nanjing Univ., Nanjing (China). National Lab. of Solid State Microstructures and Dept. of Physics; Nanjing Univ. (China). Innovative Center for Advanced Microstructures
  10. Collaborative Innovation Center of Quantum Matter, Beijing (China); Tsinghua Univ., Beijing (China). State Key Lab. of Low Dimensional Quantum Physics and Dept. of Physics
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1564119
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Chinese Physics Letters
Additional Journal Information:
Journal Volume: 36; Journal Issue: 7; Journal ID: ISSN 0256-307X
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English

Citation Formats

Cui, Yi, Hu, Ze, Zhang, Jin-Shan, Ma, Wen-Long, Ma, Ming-Wei, Ma, Zhen, Wang, Cong, Yan, Jia-Qiang, Sun, Jian-Ping, Cheng, Jin-Guang, Jia, Shuang, Li, Yuan, Wen, Jin-Sheng, Lei, He-Chang, Yu, Pu, Ji, Wei, and Yu, Wei-Qiang. Ionic-Liquid-Gating Induced Protonation and Superconductivity in FeSe, FeSe0.93S0.07, ZrNCl, 1T-TaS2 and Bi2Se3 *. United States: N. p., 2019. Web. doi:10.1088/0256-307X/36/7/077401.
Cui, Yi, Hu, Ze, Zhang, Jin-Shan, Ma, Wen-Long, Ma, Ming-Wei, Ma, Zhen, Wang, Cong, Yan, Jia-Qiang, Sun, Jian-Ping, Cheng, Jin-Guang, Jia, Shuang, Li, Yuan, Wen, Jin-Sheng, Lei, He-Chang, Yu, Pu, Ji, Wei, & Yu, Wei-Qiang. Ionic-Liquid-Gating Induced Protonation and Superconductivity in FeSe, FeSe0.93S0.07, ZrNCl, 1T-TaS2 and Bi2Se3 *. United States. doi:10.1088/0256-307X/36/7/077401.
Cui, Yi, Hu, Ze, Zhang, Jin-Shan, Ma, Wen-Long, Ma, Ming-Wei, Ma, Zhen, Wang, Cong, Yan, Jia-Qiang, Sun, Jian-Ping, Cheng, Jin-Guang, Jia, Shuang, Li, Yuan, Wen, Jin-Sheng, Lei, He-Chang, Yu, Pu, Ji, Wei, and Yu, Wei-Qiang. Sat . "Ionic-Liquid-Gating Induced Protonation and Superconductivity in FeSe, FeSe0.93S0.07, ZrNCl, 1T-TaS2 and Bi2Se3 *". United States. doi:10.1088/0256-307X/36/7/077401.
@article{osti_1564119,
title = {Ionic-Liquid-Gating Induced Protonation and Superconductivity in FeSe, FeSe0.93S0.07, ZrNCl, 1T-TaS2 and Bi2Se3 *},
author = {Cui, Yi and Hu, Ze and Zhang, Jin-Shan and Ma, Wen-Long and Ma, Ming-Wei and Ma, Zhen and Wang, Cong and Yan, Jia-Qiang and Sun, Jian-Ping and Cheng, Jin-Guang and Jia, Shuang and Li, Yuan and Wen, Jin-Sheng and Lei, He-Chang and Yu, Pu and Ji, Wei and Yu, Wei-Qiang},
abstractNote = {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 43.5 K for FeSe0.93S0.07, and 41 K for FeSe after protonation. Superconducting transitions with Tc ~ 15 K for ZrNCl, ~7.2 K for 1T-TaS2, and ~3.8 K 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 1/1 T1 with increasing x, which is consistent with the LDA calculations that H+ is located in the interstitial sites close to the anions.},
doi = {10.1088/0256-307X/36/7/077401},
journal = {Chinese Physics Letters},
number = 7,
volume = 36,
place = {United States},
year = {2019},
month = {6}
}

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