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A survey of heavy-antiheavy hadronic molecules Dong Xiang-Kun, Guo Feng-Kun, Zou Bing-Song Progress in Physics    2021, 41 (2): 65-93.   DOI: 10.13725/j.cnki.pip.2021.02.001 Abstract （1470）      PDF （1088KB）（15392）       Many efforts have been made to reveal the nature of the overabundant resonant structures observed by the worldwide experiments in the last two decades. Hadronic molecules attract special attention because many of these seemingly unconventional resonances are located close to the threshold of a pair of hadrons. To give an overall feature of the spectrum of hadronic molecules composed of a pair of heavy-antiheavy hadrons, namely, which pairs are possible to form molecular states, we take charmed hadrons for example to investigate the interaction between them and search for poles by solving the Bethe-Salpeter equation. We consider all possible combinations of hadron pairs of the S-wave singly-charmed mesons and baryons as well as the narrow P-wave charmed mesons. The interactions, which are assumed to be meson-exchange saturated, are described by constant contact terms which are resummed to generate poles. It turns out that if a system is attractive near threshold by the light meson exchange, there is a pole close to threshold corresponding to a bound state or a virtual state, depending on the strength of interaction and the cutoff. In total, 229 molecular states are predicted. The observed near-threshold structures with hidden-charm, like the famous X(3872) and Pc states, fit into the spectrum we obtain. We also highlight a  ΛcΛc  bound state that has a pole consistent with the cross section of the e+e-→ ΛcΛc  precisely measured by the BESIII Collaboration. Related Articles | Metrics

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Progress in Physics    2019, 39 (4): 144-152.   Abstract （631）      PDF （2346KB）（4460）       Related Articles | Metrics

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Progress in Preparation and Performance Optimization of 3D/2D Halide Perovskite Heterojunction HE Shengrong , XING Jun , YAO Xiaolong , MA Xiaoman , LI Peng Progress in Physics    2025, 45 (4): 169-194.   DOI: 10.13725/j.cnki.pip.2025.04.002 Abstract （279）      PDF （8487KB）（831）       Halide perovskite materials have emerged as a research hotspot in new energy technologies due to their remarkable advantages in photoelectric conversion efficiency, while three-dimensional (3D)/two-dimensional (2D) perovskite heterojunctions have attracted particular attention owing to their unique band structures and flexible regulation capabilities for carrier behavior. This review focuses on the controllable preparation and performance optimization of 3D/2D halide perovskite heterojunctions. It first summarizes the concept, advantages, and conventional preparation methods of 3D/2D perovskite heterojunctions, including solid-liquid post-spin-coating methods, solid-gas vapor deposition approaches, and solidsolid reaction techniques. Subsequently, effective strategies for enhancing the performance of 3D/2D perovskite heterojunctions through interface engineering, material engineering, and device structure optimization are systematically explored. The review then comprehensively summarizes and evaluates recent research progress in the application of 3D/2D heterojunctions in solar cells and photodetectors. Finally, current challenges regarding the stability and environmental adaptability of 3D/2D perovskite heterojunctions are discussed, along with systematic perspectives on future development trends in this research field. This work aims to provide feasible ideas and optimization schemes for realizing the widespread application of 3D/2D perovskite heterojunctions in photoelectric fields. Related Articles | Metrics

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Progress in Physics    2012, 32 (2): 57-59.   Abstract （716）      PDF （5636KB）（5860）       Related Articles | Metrics

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MAX phase：Synthesis, Structure and Property Tian Li, Fu Chao, Li Yue-Ming, Fan Xiao-Xing, Wang En-Ge, Zhao Guo-Rui Progress in Physics    2021, 41 (1): 39-61.   DOI: 10.13725/j.cnki.pip.2021.01.002 Abstract （3491）      PDF （26993KB）（3593）       MAX phase ceramics have a unique crystal structure in which MX sheets and A-element layers are alternately stacked, so that it has both the excellent characteristics of metal and ceramics. They exhibit high electrical and thermal conductivities, and are machinable. And at the same time, they are resistant to oxidation and corrosion, and elastic stiff. They are attracting more and more attention in the past 20 years with their potential widely applications. In this paper, some research work on MAX phase and MXenes materials are reviewed. Firstly, recent discoveries on the newly MAX phases and their preparation method are introduced. Then, from the physical-property perspective, the research progress on the elastic, electrical, thermal and magnetic properties and radiation resistance of typical MAX phases is reviewed. In addition, a further introduction of MXene, which is a two-dimensional derivative of MAX phases, and its synthesis, characterization, properties and its application in electrochemical energy storage and in catalysis is presented. Finally, important future research directions are discussed. These include charting the unknown regions in phase diagrams to discover new MAX phases, exploring their unknown special physical properties, studying 2D derivative MXene, as well as researching their synthesis, characterization, and potential applications. Related Articles | Metrics

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A Brief History of Solid State Physics SHI Feng , HAN Xiu-jun , ZHANG Ling-cui , XU Yue , ZHANG Chuan-jiang Progress in Physics    2021, 41 (4): 170-187.   DOI: 10.13725/j.cnki.pip.2021.04.002 Abstract （3521）      PDF （446KB）（14342）       The study of many-body problems in solid-state physics is an important branch of physics, covering a wide range of areas, and it is also the basis of many technical disciplines including materials science. This article discusses the brief history of the development of solid state physics, including the initial development history, the study of thermal properties, Weidmann-Franz law, the study history of the microscopic geometric structure of crystals, the free electron gas model, the energy band theory of solids, and the The research of solid magnetism, the information age, the development of solid state physics in China, and the teaching materials of solid state physics, etc., briefly describe the major events in the development of solid state physics, and the influential scientists and their contributions. Related Articles | Metrics

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Tuning the Thermal Conductivity of Polymer: A Recent Progress Report Progress in Physics    2018, 38 (2): 69-81.   Abstract （872）      PDF （1047KB）（17271）       Polymer-based thermal interface materials play an important role in the heat removal and thermal management of high-density integrated circuits. Here, we introduce the theoretical and experi- mental progress of the thermal conductivity of polymers. Main foci are given to enhancement of thermal conductivity in polymers, including stretched polymer and polymer-based nanocompos- ites. Bottlenecks and challenges in this eld are also comprehensive discussed in this review. Related Articles | Metrics

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Progress in Physics    2014, 34 (2): 47-117.   Abstract （1117）      PDF （9236KB）（11530）       Related Articles | Metrics

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Research Progress on Two-Dimensional Multiferroic Materials and Their Magnetoelectric Properties ZHENG Hongqian , HU Ting , HUANG Chengxi , DU Yongping , WAN Yi Progress in Physics    2025, 45 (3): 105-117.   DOI: 10.13725/j.cnki.pip.2025.03.001 Abstract （1081）      PDF （9286KB）（2179）       In recent years, multiferroic materials, which possess both ferromagnetic and ferroelectric properties, have attracted intense attention from researchers due to their novel and rich physical characteristics, as well as their broad potential applications in fields such as information storage and sensor technologies. As understanding of the properties of multiferroic materials deepens, researchers have begun to explore their behavior at smaller scales, particularly focusing on two-dimensional (2D) materials. Compared to three-dimensional (3D) materials, 2D materials, owing to their unique structural features and significant size effects, often exhibit more superior performance in terms of mechanical, optical, thermal, and magnetic properties. However, it is noteworthy that current research on 2D multiferroic materials is primarily concentrated on theoretical predictions, with experimental progress lagging behind. In this context, this paper first briefly reviews the development history of multiferroic materials, then elaborates on the characteristics and advantages of 2D materials, and discusses the potential applications of 2D multiferroic materials. Subsequently, the paper provides an overview of the current research status, covering related physical phenomena and mechanisms, experimental preparation methods, performance regulation technologies, and characterization techniques. Furthermore, this paper also enumerates potential 2D multiferroic materials predicted by theory and, based on this, delves into the challenges faced by current research and future directions for development.  Related Articles | Metrics

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Gauge Field and Fiber Bundle：Its Contents, Methods, and Meanings  ZHAO Song-nian , LU Bo, CHEN Ken, HUANG Xu Progress in Physics    2023, 43 (1): 10-24.   DOI: 10.13725/j.cnki.pip.2023.01.002 Abstract （3332）      PDF （708KB）（4858）       Related Articles | Metrics

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Development Status of Topological Superfluid in Ultracold Atoms FENG Jian, ZHANG Wei-wei, LIN Liang-wei, CAI Qi-peng, ZHANG Yi-cai, LIU Chao-fei Progress in Physics    2022, 42 (3): 67-95.   DOI: 10.13725/j.cnki.pip.2022.03.001 Abstract （1434）      PDF （1246KB）（8079）       The topological superfluid state is protected by the energy gap in the bulk, but it can accommodate the gapless Majorana fermions at the edge of the system. The Majorana fermions satisfy non-Abelian statistics and are protected by topology and have good stability, they can carry quantized information and can be used in the study of topological quantum computing. In recent years, theoretical work has predicted the possible topological superfluid states in various systems. Firstly, we introduce the topological superfluid in various optical lattice models. The ultracold atoms of optical lattice have good controllability and universality. It is an ideal model system to realize topological superfluid. Next, we introduce the topological superfluid under the control of spin orbit coupling. The spin orbit coupling effect is an important condition to induce the topological phase, and the artificial spin orbit coupling has been realized in the experiment. Which makes a breakthrough for the experimental observation of topological superfluid. With the improvement of experimental technology in recent years, the topological FFLO superfluid phase, which was difficult to observe in the experiment and ignored by people, has also become a research hotspot. Therefore, we next introduce the topological FFLO superfluid. In addition, we also introduce the progress in other aspects of topological superfluid, including topological superfluid induced by soliton, three-component topological superfluid, topological superfluid with large Chern number, and the high critical temperature of topological superfluid. In the experiment, how to detect and implement topological superfluid is the purpose and significance of our research. Therefore, we introduce the identification and implementation of topological superfluid at the end of the article. Related Articles | Metrics

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The exotic electronic properties of the topological Kondo insulator SmB 6 ZHAO Gan, ZHANG Ming-yuan, WANG Jia-min, ZHANG Wang, MIAO Lin Progress in Physics    2021, 41 (6): 231-.   DOI: 10.13725/j.cnki.pip.2021.06.001 Abstract （1807）      PDF （9363KB）（7648）       The topological Kondo insulator (TKI) is an intrinsic electronic correlated topological system in which the bulk bandgap is originated from the Kondo correlation. Since the theoretical idea of TKI was proposed in 2010, SmB6 was predicted to be the first candidate topological Kondo insulator. In the last decade, SmB6 was investigated extensively by various experimental methods, and the accumulated evidence confirmed that SmB6 is a topological Kondo insulator. This review article presented some key experimental evidence, including electronic transportation measurements, ARPES study of low-energy band structure, and STM characterization of the surface. We also discussed how these experimental results establish the topological narrative of SmB6. Meanwhile, some extremely exotic properties like the 3D quantum oscillations and the bulk-surface valence seperation of SmB6 are exhibited. The related physical origin is still unknown and needs extra efforts to unveil the underlying physics. Related Articles | Metrics

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Hydrogen-Based Superconductors under High Pressures DU Ming-yang, ZHANG Zi-han, DUAN De-fang, CUI Tian Progress in Physics    2022, 42 (5): 184-192.   DOI: 10.13725/j.cnki.pip.2022.05.002 Abstract （1711）      PDF （3042KB）（4526）       Achieving room temperature superconductivity has always been the dream of mankind pursuing for a long time. Finding and synthesizing new materials with room temperature superconductivity is the ”Holy Grail” of condensed matter physics. Since the theoretical and experimental discovery of H3S and LaH10 with high superconducting critical temperature above 200 K, the hydrogen-based superconductors became the best candidate for achieving room temperature superconductivity, which is also one of the hot areas of multi-disciplinary research in physics, materials science etc. In this work, we outline the development history of superconductors, introduce several typical superconducting materials, focus on the current progress and challenges of hydrogen based superconductors under high pressures, discuss the design ideas of hydrogen based high-temperature superconductors in the middle and low pressure range, and look forward to the possibility of hydrogen-based superconductors with high critical temperature and even room temperature under low pressure or ambient pressure. Related Articles | Metrics

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Progress in Physics    2017, 37 (2): 41-74.   Abstract （873）      PDF （652KB）（3568）       Related Articles | Metrics

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Measurement methods of magnetic fields in laboratory astrophysics SHI Chuanqi , YUAN Dawei , ZHAO Gang Progress in Physics    2025, 45 (3): 151-159.   DOI: 10.13725/j.cnki.pip.2025.03.004 Abstract （464）      PDF （5979KB）（941）       Magnetic fields are ubiquitous in the universe, such as Earth, Sun, supernova remnants, nebulae, giants, neutron stars, black holes and so on. Despite their widespread presence, there remain numerous unanswered questions about astronomical magnetic fields. For instance, how are initial magnetic fields generated? How do magnetic fields undergo amplification? With the advent of high-power, high-energy laser facilities, laboratory astrophysics provides a new method to the study of astrophysical problems in a controlled laboratory setting, where researchers recreate extreme physical conditions similar to those found in astrophysical objects or their surroundings. The benefits of this method include the short distance, activity, controlled condition and reproducibility. Under the scaling laws, laboratory plasmas can study the origin and amplification of astrophysical magnetic fields. Various measurement techniques are employed in current laboratory studies to assess magnetic fields, including magnetic probes, magnetic tapes, Zeeman effect, Faraday rotation, and proton radiography. Understanding the principles and characteristics of these diagnostic methods is essential in selecting the appropriate method for measuring magnetic fields in experiments.  Related Articles | Metrics

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Progress in Physics    2012, 32 (1): 1-32.   Abstract （869）      PDF （1234KB）（3446）       Related Articles | Metrics

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Development of Functional Materials for Photocatalytic Reduction of CO 2 TANG Lan-qin, JIA Yin, ZHU Zhi-shang, WU Cong-ping, ZHOU Yong, ZOU Zhi-gang Progress in Physics    2021, 41 (6): 254-263.   DOI: 10.13725/j.cnki.pip.2021.06.002 Abstract （4638）      PDF （3681KB）（11742）       With the increase of CO2 greenhouse gas emissions, seeking new energy sources to build a low carbon society has become more urgent since the 21st century. The conversion of CO2 to valuable hydrocarbon fuel driven by solar energy is of great potential and promising to realize the global carbon balance. Exploring semiconductor materials is very important for the photoreduction of CO2. Therefore, it will be the main research direction to fabricate highly efficient photocatalysis materials. This paper reviews recent research on photocatalytic reduction of CO2 to the hydrocarbon fuels in our groups, mainly focusing on nanostructure and component regulations of semiconductor catalysts, including TiO2, V, W, Ge Ga based materials, C3N4 based and some other materials, for the photocatalytic reduction of CO2. Related Articles | Metrics

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Probing the Electronic Structure and Dimensionality Tuning of Ce-Based Heavy Fermion Materials WU Yi , LI Peng , WU Zhong-zheng , FANG Yuan , LIU Yang Progress in Physics    2022, 42 (3): 96-120.   DOI: 10.13725/j.cnki.pip.2022.03.002 Abstract （1479）      PDF （2002KB）（4812）       Heavy fermion compound is a classical type of correlated materials, encompassing unconventional superconductivity, strange metal, quantum criticality, magnetic order, heavy electronic states, correlated topological states, etc, in which 4f electrons play a critical role. With the advancement of high-resolution ARPES measurements and MBE thin film growth techniques, direct observation of the band dispersion and spectral weight of 4f electrons in momentum/energy space has become possible, providing spectroscopic insight for understanding correlated electronic states and novel quantum phenomena. In this review paper, we summarized the electronic studies of several typical heavy fermion compounds and thin films, including Ce-115 families, CuCu2Si2, CeRh6Ge4 and Ce films, etc. The experimental results provide direct evidence to understand the temperature evolution of heavy electronic states, energy/moment-dependent Kondo hybridization, the interplay of heavy electronic state with superconductivity, the competition between Kondo effect with other quantum states and the dimensionality tuning of 4f electrons. Related Articles | Metrics

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Progress in Physics    2021, 41 (5): 221-229.   DOI: 10.13725/j.cnki.pip.2021.05.003 Abstract （948）      PDF （6185KB）（2324）       Related Articles | Metrics

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Progress in Physics    2014, 34 (1): 1-9.   Abstract （930）      PDF （1363KB）（4415）       Related Articles | Metrics