【作者】
崔祎；
胡泽；
张金珊；
马文龙；
马明伟；
马祯；
王聪；
阎加强；
孙建平；
程金光；
贾爽；
李源；
温锦生；
雷和畅；
于浦；
季威；
于伟强；
【Author】
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;School of Mathematics and Physics, North China Electric Power University;Department of Physics, and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices,Renmin University;International Center for Quantum Materials, School of Physics, Peking University;National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University;Materials Science and Technology Division, Oak Ridge National Laboratory;Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences;Collaborative Innovation Center of Quantum Matter;Innovative Center for Advanced Microstructures, Nanjing University;State Key Laboratory of Low Dimensional Quantum Physics and Department of Physics, Tsinghua University;
【通讯作者】
张金珊;贾爽;于伟强;
【机构】
School of Mathematics and Physics, North China Electric Power University；
Department of Physics, and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices,Renmin University；
International Center for Quantum Materials, School of Physics, Peking University；
National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University；
Materials Science and Technology Division, Oak Ridge National Laboratory；
Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences；
Collaborative Innovation Center of Quantum Matter；
Innovative Center for Advanced Microstructures, Nanjing University；
State Key Laboratory of Low Dimensional Quantum Physics and Department of Physics, Tsinghua University；
【摘要】 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 Fe Se after protonation. Superconducting transitions with Tc～15 K for ZrNCl,～7.2 K for 1-TaS2, and ～3.8 K for Bi2Se3 are induced after protonation. Electric transport in protonated FeSe0.93S0.07 confirms high-temperature superconductivity. Our1 H nuclear magnetic resonance（NMR）measurements on protonated Fe Se1-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.更多还原
【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 43.5 K for FeSe0.93S0.07, and 41 K for Fe Se after protonation. Superconducting transitions with Tc～15 K for ZrNCl,～7.2 K for 1-TaS2, and ～3.8 K for Bi2Se3 are induced after protonation. Electric transport in protonated FeSe0.93S0.07 confirms high-temperature superconductivity. Our1 H nuclear magnetic resonance（NMR）measurements on protonated Fe Se1-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.更多还原
【基金】 supported by the National Natural Science Foundation of China under Grant Nos 51872328,11622437,11574394,11774423 and 11822412;the Strategic Priority Research Program of Chinese Academy of Sciences under Grant No XDB30000000;the Ministry of Science and Technology of China under Grant No 2016YFA0300504;the Fundamental Research Funds for the Central Universities;the Research Funds of Renmin University of China(RUC)(15XNLQ07,18XNLG14,19XNLG17);supported by the National Natural Science Foundation of China under Grant Nos 11774007 and U1832214;supported by the Outstanding Innovative Talents Cultivation Funded Programs 2018 of Renmin University of China;supported by the U.S. Department of Energy,Office of Science,Basic Energy Sciences,Division of Materials Sciences and Engineering
