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Study of charmonium(-like)mesons under a diabatic approach

Chinese Physics C 2025年第1期49卷 70-79页

作者： Zi-Zhao Zhang Rong Li Bo-Chao Liu MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter School of PhysicsXi'an Jiaotong UniversityXi'an 710049China

In this work,we study the charmonium(-like)spectrum below 4.1 GeV using the diabatic approach,which offers a unified description of conventional and unconventional heavy meson *** to previous studies,we consider a more realistic cc potential by including the spin-dependent interactions,which allows us to obtain more states and insights into the charmonium *** on our calculation,we obtain the masses of the charmonium spectrum,which align well with experimental *** also present the probabilities of finding various components,i.e.,cc or meson-meson pairs,in these *** results support the arguments that X_(c1)(3872),Ψ(4040),and X_(c2)(3930)have significant molecular *** addition,our calculations show that X_(c0)(3860)and Ψ(3770)can be considered as candidates for the charmonium states X_(c0)(2P)and Ψ(1D),respectively.

关键词： quark model charmonium spectrum molecular state

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Fast,faster,and the fastest structured illumination microscopy

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Light(Science & Applications) 2024年第9期13卷 1693-1695页

作者： Tianyu Zhao Ming Lei MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter School of PhysicsXi’an Jiaotong UniversityXi’an 710049China

Parallel acquisition-readout structured-illumination microscopy(PAR-SIM)was designed for high-speed raw data *** utilizing an xy-scan galvo mirror set,the raw data is projected onto different areas of the camera,enabl... 详细信息

关键词： illumination faster utilizing

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Periodic modulation of adiabatic dynamics in non-reciprocal Landau-Zener systems

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Chinese Physics B 2025年第3期34卷 259-264页

作者： Rong Chang Sheng-Chang Li MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Shaanxi Province Key Laboratory of Quantum Information and Quantum Optoelectronic Devicesand School of PhysicsXi’an Jiaotong UniversityXi’an 710049China

The control of adiabatic dynamics is essential for quantum *** investigate the effects of both periodic modulating field and linear sweeping field on adiabatic dynamics based on a non-reciprocal Landau-Zener model with periodic *** obtain adiabatic phase diagrams in the(ω,δ)parameter space,where the adiabatic region is bounded by the modulating frequencyωgreater than a critical valueω_(c) and the non-reciprocal parameterδless than *** results show that the adiabaticity of the system is not sensitive to the modulating *** find that the critical modulating frequency can be expressed as a power function of the modulating period number or the sweeping *** findings suggest that one can change the adiabatic region or improve the adiabaticity by adjusting the parameters of both the modulating and the sweeping fields,which provides an effective means to flexibly control the adiabatic dynamics of non-reciprocal systems.

关键词： adiabaticity non-reciprocity Landau-Zener tunneling periodic modulation

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First-principles study of the bandgap renormalization and optical property ofβ-LiGaO_(2)

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Chinese Physics B 2023年第4期32卷 87-92页

作者：方党旗 MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter School of PhysicsXi’an Jiaotong UniversityXi’an 710049China

Theβ-LiGaO_(2)with an orthorhombic wurtzite-derived structure is a candidate ultrawide direct-bandgap *** this work,using the non-adiabatic Allen-Heine-Cardona approach,we investigate the bandgap renormalization arising from electron-phonon *** find a sizable zero-point motion correction of-0.362 eV to the gap atΓ,which is dominated by the contributions of long-wavelength longitudinal optical *** bandgap ofβ-LiGaO_(2)decreases monotonically with increasing *** investigate the optical spectra by comparing the model Bethe-Salpether equation method with the independent-particle *** calculated optical spectra including electron-hole interactions exhibit strong excitonic effects,in qualitative agreement with the *** contributing interband transitions and the binding energy for the excitonic states are analyzed.

关键词： wide-bandgap semiconductor electron-phonon coupling bandgap renormalization optical spectrum first-principles calculation

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The d-p orbital hybridization engineered RhPb bimetallene for efficient ethanol electrooxidation

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Science China Chemistry 2025年第5期68卷 1897-1905页

作者： Bo-Qiang Miao Zi-Han Yuan Qing-Ling Hong Xuan Ai Fu-Min Li Pei Chen Pu-Jun Jin Yu Chen Key Laboratory of Macromolecular Science of Shaanxi Province Shaanxi Key Laboratory for Advanced Energy DevicesSchool of Materials Science and EngineeringShaanxi Normal University MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter School of PhysicsXi'an Jiaotong University

The construction of bimetallic sites with strong interaction can effectively regulate the electronic structure and modulate the adsorption behavior of adsorbate species on bimetallic catalysts, thereby overcoming catalytic bottlenecks. Herein, an RhPb bimetallene(RhPb b-ML) with the strong d-p orbital hybridization is proposed for efficiently catalyzing ethanol oxidation reaction(EOR). Notably, the specific EOR activity of RhPb b-ML is 32 and 6.8 times higher than those of Rh metallene and commercial Pt/C, respectively. Theoretical calculation analysis reveals that the introduction of Pb atoms into the Rh lattice leads to an upward shift of the d-band center of Rh on RhPb(111). The shift in the d-band center is primarily attributed to the different degrees of hybridization between the d sub-orbitals of Rh and the p-orbitals of Pb, which enhance the adsorption of key species and improve EOR activity and selectivity. In-situ infrared tests and high-performance liquid chromatography tests together confirm that RhPb b-ML not only exhibits enhanced ability for the breakage of C–C bonds but also effectively suppresses the generation of absorbed CO. Furthermore, the strategy of enhancing catalyst performance through the strong d-p orbital hybridization has been demonstrated to be scalable to other bimetallic catalysts, providing valuable insights for the design of advanced catalysts.

关键词： RhPb bimetallene d-p orbital hybridization electronic structure ethanol oxidation reaction selectivity

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Analysis of the K_(-)p→γΛ reaction

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Chinese Physics C 2025年第4期49卷 142-151页

作者： Yi Pan Rong Li Bo-Chao Liu MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter School of PhysicsXi'an Jiaotong UniversityXi'an 710049China Institute of Theoretical Physics Xi'an Jiaotong UniversityXi'an 710049China

In this work,we study the K_(-)p→γΛreaction in an effective Lagrangian approach and isobar *** to previous studies using a Regge-plus-resonance model,we consider the contributions of the t-channel(K and K^(*))and u-channel(proton)exchanges explicitly as the background *** restore the gauge invariance of the amplitude violated by introducing the phenomenological form factors,we employ two different methods from the ***,we discuss the roles of possible resonance contributions in this reaction and present predictions ofΛpolarization based on various *** find that the contribution of the background terms plays an important role in the present ***,theΛ(1520),∑(1660),and∑(1670)resonances may also contribute to this *** to the uncertainties of the present data and relatively small contributions of the hyperon resonances,we cannot identify the roles of various hyperon resonances in the present ***,we show that the measurement of the spin polarization of the final A will be helpful to verify various models.

关键词： resonance Lambda polarization gauge invariance

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High-performance broadband flexible photodetector based on Gd_(3)Fe_(5)O_(12)-assisted double van der Waals heterojunctions

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Microsystems & Nanoengineering 2023年第4期9卷 157-165页

作者： Ze Zhang Peirui Ji Shaobo Li Fei Wang Shengmei He Yiwei Cheng Shuhao Zhao Kaili Li Xiaomin Wang Yu Wang Shuming Yang State Key Laboratory for Manufacturing Systems Engineering Xi’an Jiaotong UniversityXi’anShaanxiChina MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi’an Jiaotong UniversityXi’anShaanxiChina

Flexible photodetectors are fundamental components for developing wearable systems,which can be widely used for medical detection,environmental monitoring and flexible ***,compared with 3D materials,lowdimensional materials have degraded performance,a key challenge for current flexible ***,a highperformance broadband photodetector has been proposed and *** combining the high mobility of graphene(Gr)with the strong light–matter interactions of single-walled carbon nanotubes(SWCNTs)and molybdenum disulfide(MoS2),the flexible photodetector exhibits a greatly improved photoresponse covering the visible to near-infrared ***,a thin layer of gadolinium iron garnet(Gd_(3)Fe_(5)O_(12),GdlG)film is introduced to improve the interface of the double van der Waals heterojunctions to reduce the dark *** SWCNT/GdIG/Gr/GdIG/MoS2 flexible photodetector exhibits a high photoresponsivity of 47.375 A/W and a high detectivity of 1.952×1012 Jones at 450 nm,a high photoresponsivity of 109.311 A/W and a high detectivity of 4.504×10^(12) Jones at 1080 nm,and good mechanical stability at room *** work demonstrates the good capacity of GdIGassisted double van der Waals heterojunctions on flexible substrates and provides a new solution for constructing high-performance flexible photodetectors.

关键词： performance double constructing

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Implementation of integrated nonlocal sensing for object shape and rotational speed

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Science China(Physics,Mechanics & Astronomy) 2024年第7期67卷 6-12页

作者： Zhenyu Guo Yunlong Wang Zehong Chang Jiawei Wang Junliang Jia Pei Zhang Ministry of Education Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Shaanxi Province Key Laboratory of Quantum Information and Quantum Optoelectronic DevicesSchool of PhysicsXi’an Jiaotong UniversityXi’an 710049China

The expeditious acquisition of information pertaining to objects through the utilization of quantum technology has been a perennial issue of *** far,the efficient utilization of information from dynamic objects with limited resources remains a significant ***,we realize a nonlocal integrated sensing of the object's amplitude and phase information by combining digital spiral imaging with the correlated orbital angular momentum *** amplitude information is utilized for object identification,while the phase information enables us to determine the rotational *** demonstrate the nonlocal identification of a rotating object's shape,irrespective of its rotational symmetry,and introduce the concept of the correlated rotational Doppler effect,establishing a fundamental connection between this effect and the classical rotational Doppler effect,i.e.,that both rely on extracting crucial information from the spiral spectrum of *** present study highlights a promising pathway towards the realization of quantum remote sensing and imaging.

关键词： digital spiral imaging orbital angular momentum correlated rotational Doppler effect

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Enhancing blocking temperature using inverse hydrogen bonds for non-radical bridged dimeric Dy(Ⅲ)single-molecule magnets

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Science China Chemistry 2024年第10期67卷 3328-3338页

作者： Peng-Bo Jin Qian-Cheng Luo Ye-Ye Liu Yan-Zhen Zheng Frontier Institute of Science and Technology State Key Laboratory of Electrical Insulation and Power EquipmentMOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed MatterXi’an Key Laboratory of Electronic Devices and Material Chemistry and School of ChemistryXi’an Jiaotong UniversityXi’an 710054China

Single-molecule magnets(SMMs)are a kind of nanosized magnetic materials that are capable of storing massive bytes of *** coupling the spin centers in a proper manner is a usual approach to promote the working temperature(or blocking temperature)for *** delocalized radicals have been widely employed to accomplish this ***,we show a new manner by using weak but multiple B–H^(δ-)···Dy^(3+)inverse hydrogen bonding(IHB)interactions to control the magnetic couplings in a series of dimeric dysprosiacaborane *** approach leads to a record high T_(B)^(100s)of 10 K among non-radical bridged dimeric SMMs,which is mainly ascribed to strong ferromagnetic coupling(4.38 cm^(-1))and the proper alignment of the magnetic principle axes of the adjacent dysprosium(Ⅲ)*** verifying by theoretical calculations,these results demonstrate that IHB interactions can be used to construct strong axial ferromagnetic coupling and enhancing magnetic blocking temperature for SMMs.

关键词： single-molecule magnets carborane dysprosium ferromagnetic coupling inverse hydrogen bond

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Fine tuning dynamic magnetism of dysprosiacarboranyl sandwiches

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Journal of Rare Earths 2025年第6期43卷 1205-1212页

作者： Liu, Yeye Luo, Qiancheng Jin, Pengbo Zhai, Yuanqi Zheng, Yanzhen State Key Laboratory of Electrical Insulation and Power Equipment MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi'an Key Laboratory of Electronic Devices and Material Chemistry and School of Chemistry Xi'an Jiaotong University Xi'an710054 China

A series of isomeric sandwich-type dysprosiacarboranyl complexes, including [Na(THF)5][3.2'-(THF)2-3.2'-Dy(1,2-C2B9H11)x (1',7'-C2B9H11)2–x] (o/m-Dy) and [Na(THF)5][2.2'-(THF)2-2.2'-Dy (1,7-C2B9H11)2] (m-Dy) were synthesized by using the isomeric dicarbollide ligands, namely [nido-7,8-C2B9H11]2– and [nido-7,9-C2B9H11]2−. The structural details of o/m-Dy and m-Dy and magnetic dynamics of m-Dy were investigated to compare with the previous study on [Na(THF)5][2.2'-(THF)2-2.2'-Dy(1,2-C2B9H11)2] o-Dy. The bending angles of sandwiched dysprosiacarboranes are straightened so as to improve energy barriers (Ueff) from 430 (5) to 591 (0) K. Magneto-structural correlations show that the introduction of meta-C sites within the π-electron delocalized heterocyclic ring can effectively shorten the Dy–C2B3 centroid distance and increase the C2B3centroid···Dy···C2B3centroid bending angle, which is attributed to the differences in electronegativity between C and B atoms on the ring of C2B32−. Therefore, to further enhance the performance of single-molecule magnets (SMMs) on this basis, future endeavors should focus on diminishing the equatorial solvent molecules to make a wider C2B3···Dy···C2B3 bending angle. © 2024 Chinese Society of Rare Earths

关键词： Electronegativity

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