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Science Bulletin 2018年第20期63卷 1332-1337页

作者： Zhibin Shao Zongyuan Zhang Hui Yuan Haigen Sun Yan Cao Xin Zhang Shaojian Li Habakubaho Gedeon Tao Xiang Qi-Kun Xue minghu pan School of Physics Huazhong University of Science and TechnologyWuhan 430074China Institute of Physics Chinese Academy of ScienceBeifing 100190China Collaborative Innovation Center of Quantum Matter Beijing 100084China State Key Laboratory of Low-Dimensional Quantum Physics Tsinghua UniversityBejiing 100084China

Recent experimental and theoretical studies of single-layer FeSe film grown on SrTiO_3 have revealed interface enhanced superconductivity, which opens up a pathway to promote the superconducting transition temperature. Here, to investigate the role of SrTiO_3 substrate in epitaxial superconducting film, we grew a conventional superconductor b-Sn(bulk T_c～ 3.72 K) onto SrTiO_3 substrate by molecular beam epitaxy. By employing scanning tunneling microscope and spectroscopic measurements, an enhanced Tcof 8.2 K is found for epitaxial b-Sn islands, deduced by fitting the temperature dependence of the gap values using the BCS formula. The observed interfacial charge injection and enhanced electron–phonon coupling are responsible for this Tcenhancement. Moreover, the critical field of 8.3 T exhibits a tremendous increase due to the suppression of the vortex formation. Therefore, the coexistence of enhanced superconductivity and high critical field of Sn islands demonstrates a feasible and effective route to improve the superconductivity by growing the islands of conventional superconductors on perovskite-type titanium oxide substrates.

关键词： Sn islands/SrTiO3 Interface-enhanced superconductivity Molecular beam epitaxy Scanning tunneling microscope Scanning tunneling spectroscopy

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Surface superconductivity in the type Ⅱ Weyl semimetal TaIrTe4

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National Science Review 2020年第3期7卷 579-587页

作者： Ying Xing Zhibin Shao Jun Ge Jiawei Luo Jinhua Wang Zengwei Zhu Jun Liu Yong Wang Zhiying Zhao Jiaqiang Yan David Mandrus Binghai Yan Xiong-Jun Liu minghu pan Jian Wang Department of Materials Science and Engineering College of New Energy and Materials China University of Petroleum International Center for Quantum Materials School of Physics Peking University School of Physics and Information Technology Shaanxi Normal University School of Physics Huazhong University of Science and Technology Wuhan National High Magnetic Field Center Huazhong University of Science and Technology Center of Electron Microscopy State Key Laboratory of Silicon Materials School of Materials Science and Engineering Zhejiang University Department of Materials Science and Engineering University of Tennessee Department of Physics and Astronomy University of Tennessee Materials Science and Technology Division Oak Ridge National Laboratory Department of Condensed Matter Physics Weizmann Institute of Science CAS Center for Excellence in Topological Quantum Computation University of Chinese Academy of Sciences Beijing Academy of Quantum Information Sciences Collaborative Innovation Center of Quantum Matter

The search for unconventional superconductivity in Weyl semimetal materials is currently an exciting pursuit, since such superconducting phases could potentially be topologically non-trivial and host exotic Majorana modes. The layered material TaIrTe4is a newly predicted time-reversal invariant type Ⅱ Weyl semimetal with the minimum number of Weyl points. Here, we report the discovery of surface superconductivity in Weyl semimetal Ta Ir Te4. Our scanning tunneling microscopy/spectroscopy(STM/STS) visualizes Fermi arc surface states of TaIrTe4that are consistent with the previous angle-resolved photoemission spectroscopy results. By a systematic study based on STS at ultralow temperature, we observe uniform superconducting gaps on the sample surface. The superconductivity is further confirmed by electrical transport measurements at ultralow temperature, with an onset transition temperature(Tc) up to 1.54 K being observed. The normalized upper critical field h*(T/Tc) behavior and the stability of the superconductivity against the ferromagnet indicate that the discovered superconductivity is unconventional with the p-wave pairing. The systematic STS, and thickness-and angular-dependent transport measurements reveal that the detected superconductivity is quasi-1 D and occurs in the surface states. The discovery of the surface superconductivity in TaIrTe4provides a new novel platform to explore topological superconductivity and Majorana modes.

关键词： surface superconductivity Weyl semimetal topological superconductivity

Significantly enhanced superconductivity in monolayer FeSe films on SrTiO3（001） via metallic δ-doping

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National Science Review 2024年第3期11卷 119-127页

作者： Xiaotong Jiao Wenfeng Dong Mingxia Shi Heng Wang Cui Ding Zhongxu Wei Guanming Gong Yanan Li Yuanzhao Li Binjie Zuo Jian Wang Ding Zhang minghu pan Lili Wang Qi-Kun Xue State Key Laboratory of Low-Dimensional Quantum Physics Department of Physics Tsinghua University School of Physics&Information Technology Shaanxi Normal University Beijing Academy of Quantum Information Sciences Department of Physics Southern University of Science and Technology International Center for Quantum Materials School of Physics Peking University Department of Physics The Pennsylvania State University Collaborative Innovation Center of Quantum Matter Hefei National Laboratory

Superconductivity transition temperature（Tc） marks the inception of a macroscopic quantum phase-coherent paired state in fermionic systems. For 2D superconductivity, the paired electrons condense into a coherent superfluid state at Tc, which is usually lower than the pairing temperature, between which intrinsic physics including Berezinskii–Kosterlitz–Thouless transition and pseudogap state are hotly debated. In the case of monolayer FeSe superconducting films on SrTiO3（001）, although the pairing temperature（Tp） is revealed to be 65–83 K by using spectroscopy characterization, the measured zero-resistance temperature（Tc0） is limited to 20 K. Here, we report significantly enhanced superconductivity in monolayer FeSe films by δ-doping of Eu or Al on SrTiO3（001） surface, in which Tc0is enhanced by 12 K with a narrowed transition width ΔTc～8 K, compared with non-doped samples. Using scanning tunneling microscopy/spectroscopy measurements, we demonstrate lowered work function of the δ-doped SrTiO3（001） surface and enlarged superconducting gaps in the monolayer FeSe with improved morphology/electronic homogeneity. Our work provides a practical route to enhance 2D superconductivity by using interface engineering.

关键词： monolayer FeSe interface superconductivity δ-doping zero-resistance temperature superconductivity transition temperature

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本科生实验中学生心理现象分析

实验技术与管理 2021年第7期38卷 232-233,243页

作者：李青潘明虎林海平苏州大学纳米科学技术学院江苏苏州215021 陕西师范大学物理与信息技术学院陕西西安710119

结合多年实验教学实践,总结了本科实验教学过程中学生的若干常见心理现象,并从完善制度建设、强化实验安全教育、激发学生学习主动性、全面了解实验仪器设备等方面提出了引导学生保持健康实验心理的做法。

关键词：本科实验教学心理建设安全管理

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Recent progress on surface chemistry I: Assembly and reaction

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CHINESE CHEMICAL LETTERS 2024年第12期35卷 43-94页

作者： Li, Xin Xu, Zhen Bu, Donglei Cai, Jinming Chen, Huamei Chen, Qi Chen, Ting Cheng, Fang Chi, Lifeng Dong, Wenjie Dong, Zhenchao Du, Shixuan Fan, Qitang Fan, Xing Fu, Qiang Gao, Song Guo, Jing Guo, Weijun He, Yang Hou, Shimin Jiang, Ying Kong, Huihui Li, Baojun Li, Dengyuan Li, Jie Li, Qing Li, Ruoning Li, Shuying Lin, Yuxuan Liu, Mengxi Liu, Peinian Liu, Yanyan Lu, Jingtao Ma, Chuanxu pan, Haoyang pan, Jinliang pan, minghu Qiu, Xiaohui Shen, Ziyong Tan, Shijing Wang, Bing Wang, Dong Wang, Li Wang, Lili Wang, Tao Wang, Xiang Wang, Xingyue Wang, Xueyan Wang, Yansong Wang, Yu Wu, Kai Xu, Wei Xue, Na Yan, Linghao Yang, Fan Yang, Zhiyong Zhang, Chi Zhang, Xue Zhang, Yang Zhang, Yao Zhou, Xiong Zhu, Junfa Zhang, Yajie Gao, Feixue Wang, Yongfeng Peking Univ Ctr Carbon Based Elect Sch Elect Beijing 100871 Peoples R China Peking Univ Sch Elect Key Lab Phys & Chem Nanodevices Beijing 100871 Peoples R China South China Univ Technol Spin X Inst Sch Microelect Guangzhou 511442 Peoples R China Guangdong Univ Technol Sch Mat & Energy Guangzhou Key Lab Low Dimens Mat & Energy Storage Guangzhou 510006 Peoples R China Kunming Univ Sci & Technol Fac Mat Sci & Engn Kunming 650093 Peoples R China Chinese Acad Sci Suzhou Inst Nanotech & Nanobion CAS Key Lab Nanophoton Mat & Devices I Lab Suzhou 215123 Peoples R China Chinese Acad Sci CAS Res Educ Ctr Excellence Mol Sci CAS Key Lab Mol Nanostruct & Nanotechnol Beijing Natl Lab Mol Sci BNLMSInst Chem Beijing 100190 Peoples R China Nanjing Univ Posts & Telecommun Inst Adv Mat Jiangsu Natl Synerget Innovat Ctr Adv Mat State Key Lab Organ Elect & Informat Displays Nanjing 210023 Peoples R China Nanjing Univ Posts & Telecommun Inst Adv Mat Jiangsu Natl Synerget Innovat Ctr Adv Mat Jiangsu Key Lab Biosensors Nanjing 210023 Peoples R China Soochow Univ Inst Funct Nano & Soft Mat FUNSOM Jiangsu Key Lab Carbon Based Funct Mat & Devices Suzhou 215123 Peoples R China Univ Sci & Technol China Hefei Natl Res Ctr Phys Sci Microscale Hefei 230026 Peoples R China Univ Sci & Technol China Synerget Innovat Ctr Quantum Informat & Quantum Ph Hefei 230026 Peoples R China Inst Phys Beijing 100190 Peoples R China Univ Chinese Acad Sci Beijing 100190 Peoples R China Chinese Acad Sci Dalian Inst Chem Phys State Key Lab Catalysis Dalian 116023 Peoples R China Beijing Normal Univ Coll Chem Beijing 100875 Peoples R China Peking Univ Coll Chem & Mol Engn Beijing Natl Lab Mol Sci BNLMS Beijing Peoples R China South China Normal Univ Sch Mat & New Energy Shanwei 516600 Peoples R China Peking Univ Interdisciplinary Inst Light Element Quantum Mat Int Ctr Quantum Mat Collaborat Innovat Ctr Quantum MatterSch Phys Beijing 100871 Peoples R China Nanjing Univ Sci & Technol Herbert Gl

Surface chemistry focuses on the investigation of the adsorption, migration, assembly, activation, reaction, and desorption of atoms and molecules at surfaces. Surface chemistry plays the pivotal roles in both fundamental science and applied technology. This review will summarize the recent progresses on surface assembly, synthesis and catalysis investigated mainly by scanning tunneling microscopy and atomic force microscopy. Surface assemblies of water and small biomolecules, construction of Sierpi & nacute;ski triangles and surface chirality are summarized. On-surface synthesis of conjugated carbo- and heterocycles and other kinds of carbon nanostructures are surveyed. Surface model catalysis, including single-atom catalysis and electrochemical catalysis, are discussed at the single-atom level. (c) 2024 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences.

关键词： Surface chemistry Assembly Surface synthesis Catalysis on surface Surface electrochemical processes

Engineering atomic Rb-N configurations to tune radical pathways for highly selective photocatalytic H2O2 synthesis coupled with biomass valorization

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Journal of Energy Chemistry 2025年第1期100卷 215-225页

作者： Jiaye Li Shuang pan Yihuang Chen Qiong Liu College of Chemistry and Materials Engineering Wenzhou University Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology (China) Institute of Analysis Guangdong Academy of Sciences (China National Analytical CenterGuangzhou)

Photocatalytic oxygen reduction for hydrogen peroxide （H2O2） synthesis presents a green and costeffective production ***,achieving highly selective H2O2synthesis remains challenging,necessitating precise control over free radical reaction pathways and minimizing undesirable oxidative ***,we report for the visible light-driven simultaneous co-photocatalytic reduction of O2to H2O2and oxidation of biomass using the atomic rubidium-nitride modified carbon nitride（CNRb）.The optimized CNRb catalyst demonstrates a record photoreduction rate of 8.01 mM h-1for H2O2generation and photooxidation rate of 3.75 mM h-1for furfuryl alcohol to furoic acid,achieving a remarkable solar-to-chemical conversion （SCC） efficiency of up to 2.27%.Experimental characterizations and DFT calculation disclosed that the introducing atomic Rb–N configurations allows for the high-selective generation of superoxide radicals while suppressing hydroxyl free radical *** is because the Rb–N serves as the new alternative site to perceive a stronger connection position for O2adsorption and reinforce the capability to extract protons,thereby triggering a high selective redox product *** study holds great potential in precisely regulating reactive radical processes at the atomic level,thereby paving the way for efficient synthesis of H2O2coupled with biomass valorization.

关键词： Atomic economy Radical pathway regulation Rubidium atom coordination Biomass valorization

The role of axon guidance molecules in the pathogenesis of epilepsy

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Neural Regeneration Research 2025年第5期20卷 1244-1257页

作者： Zheng Liu Chunhua pan Hao Huang Department of Neurology Affiliated Hospital of Zunyi Medical UniversityZunyiGuizhou ProvinceChina

Current treatments for epilepsy can only manage the symptoms of the condition but cannot alter the initial onset or halt the progression of the disease. Consequently, it is crucial to identify drugs that can target novel cellular and molecular mechanisms and mechanisms of action. Increasing evidence suggests that axon guidance molecules play a role in the structural and functional modifications of neural networks and that the dysregulation of these molecules is associated with epilepsy susceptibility. In this review, we discuss the essential role of axon guidance molecules in neuronal activity in patients with epilepsy as well as the impact of these molecules on synaptic plasticity and brain tissue remodeling. Furthermore, we examine the relationship between axon guidance molecules and neuroinflammation, as well as the structural changes in specific brain regions that contribute to the development of epilepsy. Ample evidence indicates that axon guidance molecules, including semaphorins and ephrins, play a fundamental role in guiding axon growth and the establishment of synaptic connections. Deviations in their expression or function can disrupt neuronal connections, ultimately leading to epileptic seizures. The remodeling of neural networks is a significant characteristic of epilepsy, with axon guidance molecules playing a role in the dynamic reorganization of neural circuits. This, in turn, affects synapse formation and elimination. Dysregulation of these molecules can upset the delicate balance between excitation and inhibition within a neural network, thereby increasing the risk of overexcitation and the development of epilepsy. Inflammatory signals can regulate the expression and function of axon guidance molecules, thus influencing axonal growth, axon orientation, and synaptic plasticity. The dysregulation of neuroinflammation can intensify neuronal dysfunction and contribute to the occurrence of epilepsy. This review delves into the mechanisms associated with

关键词： axon guidance drug-resistant epilepsy epilepsy nerve regeneration nervous system diseases neural pathways neuroinflammatory diseases neuronal plasticity neurons synaptic remodeling

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探测激子极化激元在超薄范德华微晶中的光传播

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Chinese Journal of Chemical Physics 2024年第1期37卷 35-42,I0001-I0004,I0117页

作者： Talha Ijaz 边琦曹琰丁皓璇陈晓瑞卢欢杨树邢雪婷方思敏刘孟源张鑫高健智潘明虎陕西师范大学物理学与信息技术学院西安710062 华中科技大学物理学院武汉430074 洛阳师范大学物理与电子信息学院洛阳英国伯明翰大学物理与天文学院伯明翰B152TT 西安文理学院机械与材料工程学院西安710065 陕西师范大学地理与旅游学院西安710119 复旦大学信息科学与工程学院上海200433 珠海复旦创新研究院珠海519000 西北大学物理学院西安710069

激子极化激元是一种准粒子,过渡金属二硫族化合物材料即使在室温下也能支持传播激子极化子,是非常好的纳米光子学研究平台.已有研究表明,通过散射型扫描近场光学显微镜可以对过渡金属二硫族化合物薄片中激子极化激元进行实空间探测,但... 详细信息

激子极化激元是一种准粒子,过渡金属二硫族化合物材料即使在室温下也能支持传播激子极化子,是非常好的纳米光子学研究平台.已有研究表明,通过散射型扫描近场光学显微镜可以对过渡金属二硫族化合物薄片中激子极化激元进行实空间探测,但波导厚度仅限于低至30 nm.本文采用三种不同波长的入射光(1550和1064 nm的近红外以及633 nm的可见光),通过基于原子力显微镜的散射型扫描近场光学显微镜测量,探测到MoS2和WSe2薄片中激子极化子普通横电模式的纳米光学成像.在厚度分别低至~3 nm(相当于4原子层)和~8 nm(相当于12原子层)的超薄MoS2和WSe2薄片上,可以清楚地观察到干涉条纹图案,大大打破了之前的测量厚度限制.当厚度接近几个原子层时,波矢量始终保持在1.6k0~1.7k0左右,而不是理论预言的1k0.这些模式的特性表明,体系是由近乎悬浮的过渡金属二硫族化合物薄片的三层对称波导构成,其对激子极性子的传播产生限域效应.研究结果为探索基于超薄过渡金属二硫族化合物材料的近红外区极化器件提供了深入的理解和开辟了新的途径.

关键词：二维过渡金属二硫族化合物材料散射型扫描近场光学显微镜激子极化子

Co-production of hydrogen, oxygen, and electricity via an integrated solar-driven system with decoupled water electrolyzer and Na-Zn ion battery

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Journal of Energy Chemistry 2025年第1期100卷 621-627页

作者： Fei Lv Longjie Liu Jiazhe Wu Pengfei Wang Lixia pan Dengwei Jing Yubin Chen International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University

Combining water electrolysis and rechargeable battery technologies into a single system holds great promise for the co-production of hydrogen （H2） and ***,the design and development of such systems is still in its ***,an integrated hydrogen-oxygen （O2）-electricity co-production system featuring a bipolar membrane-assisted decoupled electrolyzer and a Na-Zn ion battery was established with sodium nickelhexacyanoferrate （NaNiHCF） and Zn2+/Zn as dual redox *** decoupled electrolyzer enables to produce H2and O2in different time and space with almost 100%Faradaic efficiency at 100 mA ***,the charged NaNiHCF and Zn electrodes after the electrolysis processes formed a Na-Zn ion battery,which can generate electricity with an average cell voltage of 1.75 V at 10 m A *** connecting Si photovoltaics with the modular electrochemical device,a well-matched solar driven system was built to convert the intermittent solar energy into hydrogen and electric energy with a solar to hydrogen-electricity efficiency of 16.7%,demonstrating the flexible storage and conversion of renewables.

关键词： Hydrogen Electricity Decoupled water electrolyzer Na-Zn ion battery Solar energy

Deciphering the role of mtH2O2 in hepatic ischemia-reperfusion injury mechanisms with low-background super-resolution fluorogenic probe

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Science China Chemistry 2025年第01期 297-307页

作者： Bin Fang Limin Wang Haoqin Li Jiaxin Zhang Yang Ding pan pan Li Bo Peng Hua Bai Lin Li Frontiers Science Center for Flexible Electronics Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials &Engineering Northwestern Polytechnical University Institute of Flexible Electronics (IFE Future Technologies) Xiamen University

Hepatic ischemia-reperfusion injury（HIRI） is characterized by mitochondrial dysfunction and oxidative stress. Monitoring mitochondrial hydrogen peroxide（mtH2O2） levels in real-time through super-resolution imaging is crucial for elucidating its distribution in live cells and its mechanism of action during HIRI. However, low-background fluorogenic probes have been overlooked in the context of super-resolution imaging. In this study, we developed a low-background fluorogenic probe（MitoWG） with the potential for super-resolution morphology-correlated mitochondrial identification to track the fluctuates of mtH2O2in HIRI. Activation of the desirable fluorescence properties of the probe by mtH2O2was confirmed using structural illumination microscopy（SIM）, enabling high-quality mitochondrial imaging with exceptional specificity and *** in mtH2O2levels were successfully observed in both cellular and rat models of HIRI. Furthermore, we associated the decline in mitochondrial redox homeostasis with accelerated mtH2O2production during HIRI, which triggered mitophagy deficiency and led to cell death. In conclusion, Mito-WG possesses excellent photophysical and low-background properties for SIM imaging, making it a promising tool for mtH2O2tracking in HIRI research and clinical diagnosis.

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