Chinese Journal of Physics最新文献

{"title":"Enhancement of Jeffery tri-hybrid nanofluid transport phenomena across a permeable sheet","authors":"Tharanei Saravanan ,&nbsp;Kohilavani Naganthran ,&nbsp;N.F.M. Noor ,&nbsp;Ioan Pop","doi":"10.1016/j.cjph.2025.07.024","DOIUrl":"10.1016/j.cjph.2025.07.024","url":null,"abstract":"<div><div>This research examines the effect of a Jeffery tri-hybrid nanofluid on the convective heat transfer in fluid movement over a permeable sheet that stretches or shrinks. The governing Navier-Stokes equations continuity, momentum, and energy are altered according to boundary layer theory and expressed in a solvable format by applying suitable similarity transformations. Numerical solutions obtained with the bvp4c function in MATLAB. The findings indicate that increased suction and dominant viscous dissipation significantly enhance the local Nusselt number, indicating enhanced heat transfer rates. Viscous dissipation also significantly boosts the Nusselt number, surpassing the impact of stretching or shrinking parameters. The non-uniqueness solution reveals that the first solution remains physically stable, indicating steady thermal behaviour, whereas the second solution is unstable due to significant viscoelastic and suction effects. Additionally, the results reveal the existence of a dual (non-unique) solution in the presence of suction, highlighting enhanced flow sensitivity. In contrast, injection yields a unique and stable solution. These research findings can be applied to enhance thermal management in optimising engineering processes, such as extrusion and hot rolling, by selecting appropriate fluids to improve convective heat transfer.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"98 ","pages":"Pages 212-225"},"PeriodicalIF":4.6,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic regimes of geometric constraints in flexible biomolecular systems: A Monte Carlo and information-theoretic analysis of linkage errors","authors":"Xinyi Fu ,&nbsp;Jing Wang ,&nbsp;Changgui Gu ,&nbsp;Huihui Zou","doi":"10.1016/j.cjph.2025.11.004","DOIUrl":"10.1016/j.cjph.2025.11.004","url":null,"abstract":"<div><div>Complex biomolecular labeling systems can be regarded as flexible geometric networks in which spatial errors emerge from nonlinear parameter interactions. A central challenge in nanoscale fluorescence imaging is the linkage error—the offset between a probe and its target—originating from antibody flexibility and structural heterogeneity. In this work, we establish a statistical physics framework that combines Monte Carlo simulations, information-theoretic analysis, and nonlinear regression modeling to quantitatively dissect error propagation in different molecular labeling architectures. We demonstrate that linkage error is governed by emergent synergistic regimes: length–angle co-optimization in compact single-chain nanobodies, angular equilibrium in Y-shaped IgGs, and rotational compensation in multi-level secondary complexes. These results reveal that error formation is not additive but arises from nonlinear cooperativity among geometric degrees of freedom, a hallmark of complex systems. Our framework highlights how coupling between structural parameters generates conformational cascades that amplify or suppress error, providing a generalizable approach for analyzing error dynamics in flexible molecular complexes. Beyond immunolabeling, this methodology establishes a bridge between statistical mechanics, information theory, and nanoscale biophysics, offering transferable principles for the design of high-precision probes in complex fluctuating systems.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"98 ","pages":"Pages 914-926"},"PeriodicalIF":4.6,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145575901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced adsorption of pharmaceutical pollutants in aqueous solutions using pristine and halogenated cyclic[3]tetracene: a DFT study","authors":"Mahmoud A.S. Sakr ,&nbsp;Mohamed Abdel Rafea ,&nbsp;Omar H. Abd-Elkader ,&nbsp;Hazem Abdelsalam","doi":"10.1016/j.cjph.2025.09.030","DOIUrl":"10.1016/j.cjph.2025.09.030","url":null,"abstract":"<div><div>Pharmaceutical pollutants in aquatic systems demand efficient remediation solutions. We computationally investigate cyclic[3]tetracene (C3T) and halogenated derivatives (C3T-6F, C3T-6Cl, C3T-6Br) as adsorbents for glimepiride (G) and levofloxacin (L) using DFT calculations. Structural and NBO analyses show halogenation fine-tunes geometry and charge distribution while maintaining stability. Adsorption energies (E_a) and recovery times (τ) reveal exothermic, spontaneous binding, with C3T-6Br/C3T-6F exhibiting the strongest interactions (longest τ) in aqueous media. FMO and NCI analyses confirm physisorption via van der Waals forces, as adsorbed drugs remain uninvolved in HOMO-LUMO distributions. Compared to graphene, C3T materials offer moderate, tunable adsorption strengths—ideal for reversible applications. These results position halogenated C3T frameworks as eco-friendly candidates for pharmaceutical wastewater remediation.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"98 ","pages":"Pages 459-474"},"PeriodicalIF":4.6,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145358861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Erratum to “Joule heating and viscous dissipation impact on MHD-hybrid nanofluid flow over non-isothermal stretching/shrinking surface: Dual solution and stability analysis”","authors":"Sakinah Idris ,&nbsp;Anuar Jamaludin ,&nbsp;Roslinda Nazar ,&nbsp;Sanatan Das ,&nbsp;Ioan Pop","doi":"10.1016/j.cjph.2025.10.002","DOIUrl":"10.1016/j.cjph.2025.10.002","url":null,"abstract":"","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"98 ","pages":"Pages 434-436"},"PeriodicalIF":4.6,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145358863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Energy consumption investigation for an extended car-following model incorporating the effects of global and local interaction","authors":"Bing Qiu ,&nbsp;Hua Kuang","doi":"10.1016/j.cjph.2025.10.021","DOIUrl":"10.1016/j.cjph.2025.10.021","url":null,"abstract":"<div><div>Compared with real-time tracking of the vehicles movement, acquiring global traffic information incurs lower communication costs and exhibits superior anti-interference performance. To evaluate the comprehensive performance of the global interaction, a novel car-following model for Connected Autonomous Vehicles (CAVs) is proposed, which integrates the coupling effects of global interaction (i.e., the system velocity difference) and local interaction (i.e., multiple nearest-neighbor velocity differences). Theoretical analysis and numerical simulations demonstrate the traffic flow performance under various proportional combinations of the two interactions from multiple perspectives (e.g., stability, additional energy consumption, driving smoothness, etc.). A new metric, “average acceleration power”, is introduced to quantify the smoothness of the driving process. The results show that the impact of the system velocity difference on stability is comparable to that of the nearest-neighbor velocity difference, while the resulting driving smoothness is superior to that of the multiple nearest-neighbor velocity differences in the unsteady flow, therefore leads to a reduction in additional energy consumption and an enhancement in the range of CAVs. Based on this, a flexible driving strategy is constructed, which may optimize energy consumption under different traffic conditions by leveraging the complementary advantages of global interaction factors and local interaction factors.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"98 ","pages":"Pages 793-809"},"PeriodicalIF":4.6,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145462843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanisms of three-component coupled rogue wave doublet and triplet excitations in a partially nonlocal nonlinear Schrödinger framework with a parabolic potential","authors":"Jing Yang ,&nbsp;Haomeng Zhang ,&nbsp;Yu Zhu ,&nbsp;Wei Qin ,&nbsp;Jitao Li","doi":"10.1016/j.cjph.2025.09.001","DOIUrl":"10.1016/j.cjph.2025.09.001","url":null,"abstract":"<div><div>While previous studies mainly focused on vector-similar solutions in nonlinear systems, practical applications increasingly require distinct localized structures across coupled components. To address the limited research on three-component systems with distinct rogue waves, a (2+1)-dimensional three-component coupled partially nonlocal nonlinear Schrödinger with a parabolic potential is investigated as an example. A transformation that converts the nonautonomous system to autonomous form is developed to derive exact dark-bright-dark rogue wave doublets and triplets. To characterize these three-component solutions, their versatile excitations are studied, such as full-shape excitations, crest-maintaining profiles, nascent wave formations and their periodical excitations. This framework provides a versatile approach for generating and controlling coupled yet distinct localized structures in multi-component nonlinear systems, with potential applications in nonlinear optics and Bose-Einstein condensates.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"98 ","pages":"Pages 697-710"},"PeriodicalIF":4.6,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145462839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of subcollision suppression and hadronic rescattering in PYTHIA8 Angantyr on identified hadron spectra in p+C collisions at 120 GeV/c","authors":"Khaled Abdel-Waged,&nbsp;Nuha Felemban","doi":"10.1016/j.cjph.2025.10.007","DOIUrl":"10.1016/j.cjph.2025.10.007","url":null,"abstract":"<div><div>We present a comparative study of identified hadron production-protons, charged pions, and charged kaons-in proton–Carbon (<span><math><mi>p</mi></math></span>+C) interactions at 120 GeV/<span><math><mi>c</mi></math></span> across angular intervals <span><math><mrow><mi>θ</mi><mo>=</mo><mn>0</mn></mrow></math></span>–80 mrad, using a series of systematically configured simulations based on the <span>Pythia</span>8 event generator with Angantyr modeling. The default Angantyr setup is found to overestimate proton multiplicities at mid-angles (<span><math><mrow><mi>θ</mi><mo>=</mo><mn>10</mn></mrow></math></span>–80 mrad) and to exhibit an anomalous enhancement of beam-like protons at forward angles (<span><math><mrow><mi>θ</mi><mo>=</mo><mn>0</mn></mrow></math></span>–10 mrad) near <span><math><mrow><mi>p</mi><mo>≃</mo><mn>120</mn></mrow></math></span> GeV/<span><math><mi>c</mi></math></span>, a discrepancy also observed in other hadronic interaction models implemented in <span>Geant</span>4 physics lists. To address these limitations, we introduce a modified subcollision treatment that applies constant (impact-parameter-independent) survival probabilities to non-diffractive and diffractive nucleon-nucleon (NN) subcollisions, thereby mimicking coherent nuclear effects (e.g., destructive interference/shadowing) at the subcollision level. This approach is implemented within a geometric subcollision model and constitutes a transparent, physically motivated extension of the default Angantyr formalism. Among all tested configurations, we find that only this coherence-modified scenario-when combined with multiparton interaction (MPI) tuning, removal of elastic contributions, and inclusion of final-state hadronic rescattering-achieves consistent agreement with NA61/SHINE (SPS Heavy Ion and Neutrino Experiment) measurements across all hadron species and angular bins. These results emphasize the need to incorporate subcollision-level coherence and shadowing mechanisms for accurate modeling of forward angle hadron production in <span><math><mi>p</mi></math></span>+A interactions at Super Proton Synchrotron (SPS) energies.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"98 ","pages":"Pages 711-728"},"PeriodicalIF":4.6,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145462842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correlations between atomic and magnetic disorders with the martensitic transformation and mechanical properties of all-d-metal Heusler shape memory alloys","authors":"Chun-Mei Li,&nbsp;Yu-Tong Liu,&nbsp;Zi-Ran Li,&nbsp;Ren-Zhong Huang","doi":"10.1016/j.cjph.2025.10.024","DOIUrl":"10.1016/j.cjph.2025.10.024","url":null,"abstract":"&lt;div&gt;&lt;div&gt;Using the first-principles exact muffin-tin orbital method combined with the coherent potential approximation, we have systematically investigated the correlations between atomic and magnetic ordering configurations and the martensitic transformation (MT), as well as the mechanical properties of all-&lt;em&gt;d&lt;/em&gt;-metal &lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mi&gt;X&lt;/mi&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;Mn&lt;span&gt;&lt;math&gt;&lt;mi&gt;Z&lt;/mi&gt;&lt;/math&gt;&lt;/span&gt; (&lt;em&gt;X&lt;/em&gt;=Ni, Cu, Zn, Pd, Pt, and Au; &lt;em&gt;Z&lt;/em&gt;=Ti and V) Heusler shape memory alloys. Our results show that in their cubic phase, the &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mi&gt;L&lt;/mi&gt;&lt;msub&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;mn&gt;1&lt;/mn&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; (XA) structure is relatively more stable in the ferromagnetic (paramagnetic) state, as well as for the &lt;em&gt;Z&lt;/em&gt;=Ti (V) alloys. Except for Au&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;MnTi, all these alloys can undergo the MT from &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mi&gt;L&lt;/mi&gt;&lt;msub&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;mn&gt;1&lt;/mn&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; to body-centered tetragonal (BCT), and they are also expected to exhibit significant magnetocaloric, elastocaloric, and barocaloric effects. When &lt;em&gt;X&lt;/em&gt;=Ni, Pd, and Pt, their BCT structure can further transform into a simple tetragonal (ST) one with &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mi&gt;c&lt;/mi&gt;&lt;mo&gt;/&lt;/mo&gt;&lt;mi&gt;a&lt;/mi&gt;&lt;mo&gt;≈&lt;/mo&gt;&lt;mn&gt;1&lt;/mn&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt;, i.e., a so-called face-centered cubic (FCC) structure. Both their &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mi&gt;L&lt;/mi&gt;&lt;msub&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;mn&gt;1&lt;/mn&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt;&lt;span&gt;&lt;math&gt;&lt;mo&gt;→&lt;/mo&gt;&lt;/math&gt;&lt;/span&gt;BCT and BCT&lt;span&gt;&lt;math&gt;&lt;mo&gt;→&lt;/mo&gt;&lt;/math&gt;&lt;/span&gt;ST transitions are preferred by the antiferromagnetic coupling interactions between Mn and &lt;em&gt;Z&lt;/em&gt; atoms, and the successive transitions can even be achieved solely by decreasing the total magnetic moment in each &lt;em&gt;X&lt;/em&gt;&lt;span&gt;&lt;math&gt;&lt;mo&gt;≠&lt;/mo&gt;&lt;/math&gt;&lt;/span&gt;Zn alloy. The Mn-&lt;em&gt;Z&lt;/em&gt; disorder suppresses their MT of &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mi&gt;L&lt;/mi&gt;&lt;msub&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;mn&gt;1&lt;/mn&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt;&lt;span&gt;&lt;math&gt;&lt;mo&gt;→&lt;/mo&gt;&lt;/math&gt;&lt;/span&gt;BCT but dominates the BCT&lt;span&gt;&lt;math&gt;&lt;mo&gt;→&lt;/mo&gt;&lt;/math&gt;&lt;/span&gt;ST transition, favoring the improvement of their martensite’s ductility. In most of the alloys, the presence of vacancies also disfavors their MT. The coexistence of Mn-&lt;em&gt;Z&lt;/em&gt; and &lt;em&gt;X&lt;/em&gt;-Mn disorders can cause their cubic phase to decompose and become more brittle. In &lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mi&gt;X&lt;/mi&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;MnGa&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mn&gt;1&lt;/mn&gt;&lt;mo&gt;−&lt;/mo&gt;&lt;mi&gt;x&lt;/mi&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mi&gt;Z&lt;/mi&gt;&lt;mi&gt;x&lt;/mi&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt; quaternary alloys with appropriate &lt;em&gt;Z&lt;/em&gt;-doping, their MT temperatures and ductile properties may both be effectively improved when &lt;em&gt;X&lt;/em&gt;=Ni and Pt; for &lt;em&gt;X&lt;/em&gt;=Cu and Zn, the FCC phase can also be prevented from precipitating. The hybridization between the &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mi&gt;X&lt;/mi&gt;&lt;mo&gt;_&lt;/mo&gt;&lt;mi&gt;d&lt;/mi&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; and &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mi&gt;Z&lt;/mi&gt;&lt;mo&gt;_&lt;/mo&gt;&lt;mi&gt;d&lt;/mi&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; electrons near the Fermi level p","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"98 ","pages":"Pages 778-792"},"PeriodicalIF":4.6,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145462847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CEEMDAN permutation entropy based statistical complexity measure: A new stochastic resonance metric for enhanced detection of feature-unknown weak signals","authors":"Shangbin Jiao ,&nbsp;Yin Zhu ,&nbsp;Qing Zhang ,&nbsp;Yi Wang ,&nbsp;Yuxing Li ,&nbsp;Chenjing Li ,&nbsp;Xiaohui Wang","doi":"10.1016/j.cjph.2025.08.036","DOIUrl":"10.1016/j.cjph.2025.08.036","url":null,"abstract":"<div><div>When studying the adaptive nonlinear stochastic resonance (SR) with noisy periodic signal excitation, the system output resonance effect is typically measured using signal-to-noise ratio (SNR) or SNR gain. However, in practical engineering measurements, the SNR of the noisy input signal is often unknown. To overcome this limitation, this paper proposes a novel metric, “statistical complexity measure based on CEEMDAN permutation entropy (CEEMDAN-PE based SCM)”, to quantify the resonance output effect of the SR system, addressing the challenge of detecting weak signals with unknown features in engineering applications. First, the CEEMDAN is used to preprocess the feature-unknown input signal, and the optimal intrinsic mode function (IMF) is selected. This effectively addresses the modal aliasing problem in EMD that leads to inaccurate experimental results. It also helps filter complex noise components from the signal, aiding effective feature extraction in the subsequent SR processing. Secondly, the improved SCM is selected as the fitness function for the Harris Hawks Optimization (HHO) algorithm, optimizing the best matching parameters of the piecewise linearized bistable SR (PLBSR) system, thus achieving enhanced detection of weak signals with noisy inputs and unknown feature parameters. Simulation experiments show that the proposed CEEMDAN-PE based SCM method can effectively measure the resonance effect of the PLBSR system output and achieve enhanced detection of weak periodic signals. It is also capable of characterizing the system's dynamic complexity and has the potential to detect subtle behaviors induced by noise. Practical experiments demonstrate that the proposed SR measurement method performs well in bearing fault feature extraction.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"98 ","pages":"Pages 59-72"},"PeriodicalIF":4.6,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Switchable Z-scheme charge transfer and tunable electronic properties in ZnI₂/In₂Se₃ bilayer ferroelectric heterostructure","authors":"Xiaolin Cai ,&nbsp;Zhixiang Pan ,&nbsp;Rui Li ,&nbsp;Xuefeng Yang ,&nbsp;Junke Yuan ,&nbsp;Zexi Xu ,&nbsp;Yu Jia","doi":"10.1016/j.cjph.2025.11.003","DOIUrl":"10.1016/j.cjph.2025.11.003","url":null,"abstract":"<div><div>Two-dimensional (2D) van der Waals heterostructures (vdWHs) have garnered significant attention due to their potential to extend the applications of single 2D materials. In this study, we use first-principles calculations to design a novel ZnI₂/In₂Se₃ vdWH that combines semiconducting and ferroelectric properties via precise interfacial control. Our results reveal that the reversal of the polarization direction in In₂Se₃ acts as a non-volatile switch, enabling a reversible transition between type-I and type-II band alignments in the heterostructure with the bandgaps of 1.56 and 1.43 eV, respectively. The ZnI₂/In₂Se₃ vdWH shows enhanced optical absorption with the visible and ultraviolet light absorption coefficients reaching 6% and 27%, respectively, substantially higher than those of the individual monolayers. Furthermore, the type-II ZnI₂/In₂Se₃ vdWH exhibits efficient interlayer charge transfer following a Z-scheme mechanism, promising for photocatalytic hydrogen production through water splitting. Additionally, the electronic structure of ZnI₂/In₂Se₃ vdWH is highly tunable under external electric field and strain, facilitating the reversible switching between type-I and type-II band alignments as well as between direct and indirect bandgap semiconductors. This tunability is crucial for the development of multifunctional optoelectronic devices. Our designed ZnI₂/In₂Se₃ vdWH presents significant opportunities for nano-optoelectronic device integration.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"98 ","pages":"Pages 850-860"},"PeriodicalIF":4.6,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145516994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}