Physica E-low-dimensional Systems & Nanostructures最新文献

{"title":"Quantum Hall-like effect for neutral particles with magnetic dipole moments in a quantum dot","authors":"Carlos Magno O. Pereira,&nbsp;Edilberto O. Silva","doi":"10.1016/j.physe.2025.116381","DOIUrl":"10.1016/j.physe.2025.116381","url":null,"abstract":"<div><div>We predict a new class of quantum Hall phenomena in completely neutral systems, demonstrating that the interplay between radial electric fields and dipole moments induces exact <span><math><mrow><msup><mrow><mi>e</mi></mrow><mrow><mn>2</mn></mrow></msup><mo>/</mo><mi>h</mi></mrow></math></span> quantization without Landau levels or external magnetic fields. Contrary to conventional wisdom, our theory reveals that: (i) the singularity of line charges does not destroy topological protection, (ii) spin control of quantization emerges from boundary conditions alone, and (iii) the effect persists up to 25 K, surpassing typical neutral systems. These findings establish electric field engineering as a viable route to topological matter beyond magnetic paradigms.</div></div>","PeriodicalId":20181,"journal":{"name":"Physica E-low-dimensional Systems & Nanostructures","volume":"175 ","pages":"Article 116381"},"PeriodicalIF":2.9,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145220919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Broken sublattice symmetry induced gap opening of spin-polarized Dirac cone in MnF3","authors":"Limei Zheng,&nbsp;Yu Li,&nbsp;Dazhi Sun,&nbsp;Baozeng Zhou,&nbsp;Xiaocha Wang","doi":"10.1016/j.physe.2025.116382","DOIUrl":"10.1016/j.physe.2025.116382","url":null,"abstract":"<div><div>Two-dimensional (2D) transition-metal trihalides have received extensive attention in the field of novel spintronic devices and heterostructure coupling is an effective method for achieving multifunctional integration and regulation. In this work, using first-principles calculations, we systematically study the electronic structure and magnetic properties of the 2D MnF₃/graphene heterostructures. MnF₃ monolayer exhibits Dirac half-metal properties, with electron states featuring Dirac cones in its single spin channel. With different stacking configurations, the electronic properties of both are well preserved from the band structure, interfacial charge transfer only causes the relative movement of the electronic states. Additionally, due to the broken sublattice symmetry of MnF₃ in heterostructure, a gap opening of 24.9 meV appears around the spin-polarized Dirac cone in MnF₃. Moreover, the formation of heterostructure significantly enhances the in-plane magnetic anisotropy of the MnF₃ monolayer. By reducing the interlayer distance, the spin-polarized Dirac cone has a larger gap opening of 555.5 meV, which induces the transition of MnF₃ from Dirac half-metal to magnetic semiconductor, and the Curie temperature (<em>T</em>_C) increases obviously. Furthermore, a spin logic device based on MnF₃/graphene heterostructures is proposed, which can complete the resistive state switching from the \"1″ state to the \"0″ state by application of pressure. These results provide a reference for the application of MnF₃/graphene heterostructure in spintronic devices.</div></div>","PeriodicalId":20181,"journal":{"name":"Physica E-low-dimensional Systems & Nanostructures","volume":"175 ","pages":"Article 116382"},"PeriodicalIF":2.9,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145220920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Optical photonic diode realization through spatial self-phase modulation using Mn3O4 nanoparticles","authors":"K.V. Jayaprasad,&nbsp;Titu Thomas,&nbsp;Manu Vaishakh,&nbsp;Sheenu Thomas","doi":"10.1016/j.physe.2025.116378","DOIUrl":"10.1016/j.physe.2025.116378","url":null,"abstract":"<div><div>The growing demand for efficient nonlinear optical (NLO) materials for photonic devices such as isolators, switches, and telecommunication components necessitates the exploration of new nanostructured systems. Transition metal oxides like Mn₃O₄, with strong electronic interactions and thermal responses, remain relatively underexplored for their NLO behavior. In this work, Mn₃O₄ nanoparticles synthesized via ultrasonication-assisted precipitation were investigated using spatial self-phase modulation (SSPM) with a 532 nm CW DPSS laser. Structural and morphological characteristics were confirmed by XRD and TEM analyses. Nonlinear optical parameters, including the nonlinear refractive index (n₂) and thermo-optic coefficient <span><math><mrow><mfrac><mtext>dn</mtext><mrow><mi>d</mi><mspace></mspace><mi>T</mi></mrow></mfrac></mrow></math></span> , were determined from the variation of SSPM patterns with laser intensity. Furthermore, a photonic diode based on a cascaded Mn₃O₄/TiO₂ hybrid structure was demonstrated, enabling nonreciprocal light propagation through unidirectional SSPM excitation. These findings highlight Mn₃O₄ nanoparticles as promising candidates for NLO applications, while the proposed hybrid photonic diode offers potential in integrated optics, optical switching, and telecommunication technologies.</div></div>","PeriodicalId":20181,"journal":{"name":"Physica E-low-dimensional Systems & Nanostructures","volume":"175 ","pages":"Article 116378"},"PeriodicalIF":2.9,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145220922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Klein tunneling and Fabry–Pérot resonances in twisted bilayer graphene","authors":"A. Bahlaoui ,&nbsp;Y. Zahidi","doi":"10.1016/j.physe.2025.116379","DOIUrl":"10.1016/j.physe.2025.116379","url":null,"abstract":"<div><div>The paper discusses the Klein tunneling and Fabry–Pérot resonances of charge carriers through a rectangular potential barrier in twisted bilayer graphene. Within the framework of the low-energy excitations, the transmission probability and the conductance are obtained depending on the parameters of the problem. Owing to the moiré-induced anisotropy of the Hamiltonian in twisted bilayer graphene, the propagation of charge carriers exhibits an anisotropic behavior in Klein tunneling and Fabry–Pérot resonances. Moreover, we show that the anisotropy of the charge carriers induces asymmetry and deflection in the Fabry–Pérot resonances and Klein tunneling, and they are extremely sensitive to the height of the potential applied. Additionally, we found that the conductance is strongly sensitive to the barrier height but weakly sensitive to the barrier width. Therefore, it is possible to control the maxima and minima of the conductance of charge carriers in twisted bilayer graphene. With our results, we gain an in-depth understanding of tunneling properties in twisted bilayer graphene, which may help in the development and design of novel electronic nanodevices based on anisotropic 2D materials.</div></div>","PeriodicalId":20181,"journal":{"name":"Physica E-low-dimensional Systems & Nanostructures","volume":"175 ","pages":"Article 116379"},"PeriodicalIF":2.9,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Temperature-dependent photoluminescence from nanostructured silicon: role of quantum-confined Bloch states and interfacial defects","authors":"Shayari Basu ,&nbsp;Ujjwal Ghanta ,&nbsp;Saddam Khan ,&nbsp;Manotosh Pramanik ,&nbsp;Rajalingam Thangavel ,&nbsp;Bipul pal ,&nbsp;Syed Minhaz Hossain","doi":"10.1016/j.physe.2025.116380","DOIUrl":"10.1016/j.physe.2025.116380","url":null,"abstract":"<div><div>The strong visible photoluminescence (PL) in surface-oxidized nanostructured silicon emerges from the interplay between intrinsic Bloch states and oxide-related interfacial defects, making it difficult to isolate their role. Temperature-dependent <span><math><mrow><mo>(</mo><mrow><mn>5</mn><mo>−</mo><mn>350</mn><mspace></mspace><mi>K</mi></mrow><mo>)</mo></mrow></math></span> PL measurements on nanostructured silicon with varying crystallite sizes manifest three distinct decay mechanisms involving band-to-band, band-to-trap and trap-to-trap transitions to multiple emission bands appearing in the convoluted broad PL spectrum. At lower temperatures <span><math><mfenced><mrow><mo>≲</mo><mn>225</mn><mspace></mspace><mi>K</mi></mrow></mfenced></math></span>, PL peak energy associated with the quantum-confined Bloch states exhibits a nearly linear blue shift, governed by a strong inverse power law dependence of the temperature coefficient on the effective crystallite size, while this trend reverses at higher temperatures. Conversely, the defect-related peak energies increase monotonically at a nearly constant rate throughout the experimental temperature range. A general analytical model for finite systems with a separable pseudo-potential effectively estimates the contributions from different decay channels to the PL emission. Theoretical results align well with the experimentally obtained values of the power-law exponents, offering a novel way to distinguish between the radiative recombination channels involving quantum-confined Bloch states and interfacial defects/trap states in nanostructured silicon.</div></div>","PeriodicalId":20181,"journal":{"name":"Physica E-low-dimensional Systems & Nanostructures","volume":"175 ","pages":"Article 116380"},"PeriodicalIF":2.9,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145220921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Adsorption of toxic gases chlorine, phosgene, and mustard on tetrahexcarbon: DFT and semi-empirical MD studies","authors":"Morteza Torabi Rad,&nbsp;Ramin Karimian","doi":"10.1016/j.physe.2025.116376","DOIUrl":"10.1016/j.physe.2025.116376","url":null,"abstract":"<div><div>This study demonstrates that tetrahexcarbon (THC) serves as an effective substrate for detecting toxic gases chlorine, phosgene, and mustard through non-covalent interactions. Density functional theory (DFT) calculations reveal excellent agreement with reference structures and size-dependent morphology (planar C₆₀H₂₈ vs. saddle-shaped C₉₈H₃₆). The THC substrate maintains a 3.83<!--> <!-->eV band gap with <span><math><mo>&lt;</mo></math></span>12<!--> <!-->% reduction upon adsorption, while DOS, NBO, and ELF analyses confirm physisorption with minimal electronic perturbation. Adsorption energies follow reasonable pattern: mustard (-24.75<!--> <!-->kcal<!--> <!-->mol^-1) <span><math><mo>&gt;</mo></math></span> phosgene (-13.18<!--> <!-->kcal<!--> <!-->mol^-1) <span><math><mo>&gt;</mo></math></span> chlorine (-10.56<!--> <!-->kcal<!--> <!-->mol^-1), supported by QTAIM showing 2-11 bond critical points with positive <span><math><mrow><msup><mrow><mo>∇</mo></mrow><mrow><mn>2</mn></mrow></msup><mi>ρ</mi></mrow></math></span>. Chlorine exhibits superior sensitivity (9.11 × 10¹⁸ electrons/m³) and fast recovery (1.84<!--> <!-->ns), enabling reusable detection, while mustard’s slow recovery (46.1<!--> <!-->s) suggests single-use applications. Thermodynamics confirm spontaneous adsorption (<span><math><mrow><mi>Δ</mi><mi>G</mi><mo>&lt;</mo><mn>0</mn></mrow></math></span>) with entropy trends reflecting molecular complexity, consistent with water interactions. Semi-empirical molecular dynamics (MD) simulations confirm the DFT-optimized configuration as the global minimum, with all sampled states showing higher energies and no chemical reactions, further validating THC’s physisorption capability for these toxic gases. These results position THC as a versatile platform for both real-time monitoring and one-time detection of chemical threats. Future work will investigate doping techniques to further optimize the properties of THC for applications in sensing, adsorption, and catalysis.</div></div>","PeriodicalId":20181,"journal":{"name":"Physica E-low-dimensional Systems & Nanostructures","volume":"175 ","pages":"Article 116376"},"PeriodicalIF":2.9,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Unraveling Mn intercalation and diffusion in NbSe2 bilayers through DFTB simulations","authors":"Bruno Ipaves ,&nbsp;Raphael B. de Oliveira ,&nbsp;Guilherme da Silva Lopes Fabris ,&nbsp;Matthias Batzill ,&nbsp;Douglas S. Galvão","doi":"10.1016/j.physe.2025.116355","DOIUrl":"10.1016/j.physe.2025.116355","url":null,"abstract":"<div><div>Understanding transition metal atoms’ intercalation and diffusion behavior in two-dimensional (2D) materials is essential for optimizing their performance in emerging applications. In this study, we used density functional tight binding (DFTB) simulations to investigate the atomic-scale mechanisms of manganese (Mn) intercalation into NbSe<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> bilayers. Our results show that Mn prefers intercalated and embedded positions rather than surface adsorption, as cohesive energy calculations indicate enhanced stability in these configurations. Nudged elastic band (NEB) calculations revealed an energy barrier of 0.68 eV for the migration of Mn into the interlayer, comparable to other substrates, suggesting accessible diffusion pathways. Molecular dynamics (MD) simulations further demonstrated an intercalation concentration-dependent behavior. Mn atoms initially adsorb on the surface and gradually diffuse inward, resulting in an effective intercalation at higher Mn densities before clustering effects emerge. These results provide helpful insights into the diffusion pathways and stability of Mn atoms within NbSe<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> bilayers, consistent with experimental observations and offering a deeper understanding of heteroatom intercalation mechanisms in transition metal dichalcogenides.</div></div>","PeriodicalId":20181,"journal":{"name":"Physica E-low-dimensional Systems & Nanostructures","volume":"175 ","pages":"Article 116355"},"PeriodicalIF":2.9,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Size and dielectric-dependent plasmonic resonances in CdS@Ag core–shell quantum dots: Field enhancement, dispersion, and slow-light effects","authors":"Shewa Getachew Mamo","doi":"10.1016/j.physe.2025.116371","DOIUrl":"10.1016/j.physe.2025.116371","url":null,"abstract":"<div><div>This study presents a comprehensive theoretical and numerical investigation of size- and host-medium dielectric-dependent plasmonic resonances in CdS@Ag core–shell quantum dots, with particular emphasis on field enhancement, optical dispersion, and slow-light effects. A hybrid framework combining the Maxwell–Garnett effective medium theory with a size-corrected electrostatic model was employed to compute the effective dielectric response and group velocity characteristics. The results reveal that local field enhancement is maximized by thicker Ag shells and low-permittivity hosts, enabling strong amplification of near-field intensities. Dual plasmon resonances, arising from the CdS/Ag and Ag/host interfaces, govern the field enhancement factor, refractive index and absorption spectra, producing tunable resonance shifts with variations in core radius, shell thickness, and host permittivity. Near these resonances, pronounced dispersion leads to a substantial increase in the group index, with group velocity reduced by more than an order of magnitude and, in certain regimes, reversed to negative values. Enhanced slow-light effects are particularly evident in high-permittivity hosts such as ZnO, where plasmon–exciton coupling further intensifies dispersion and suppresses pulse propagation. These findings provide new insights into the structural and dielectric control of plasmonic quantum dots and establish design guidelines for their application in optical delay lines, photonic modulators, sensors, and nonlinear optical devices.</div></div>","PeriodicalId":20181,"journal":{"name":"Physica E-low-dimensional Systems & Nanostructures","volume":"175 ","pages":"Article 116371"},"PeriodicalIF":2.9,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Efficient broadband solar absorber and thermal emitter based on Ti and InAs with pyramid-like structure","authors":"Kang An ,&nbsp;Mengsi Liu ,&nbsp;Hua Yang ,&nbsp;Zao Yi ,&nbsp;Chaojun Tang ,&nbsp;Juan Deng ,&nbsp;Junqiao Wang ,&nbsp;Boxun Li","doi":"10.1016/j.physe.2025.116377","DOIUrl":"10.1016/j.physe.2025.116377","url":null,"abstract":"<div><div>This paper innovatively proposes a broadband solar absorber and thermal emitter with dual-function integration, achieving breakthroughs in the fields of photothermal conversion and high-temperature thermal emission through three core innovations. First, it integrates high-temperature-resistant metal titanium (Ti) and semiconductor indium arsenide (InAs) into a gradient-like pyramid structure for the first time—this design breaks the limitations of single-material systems (InAs has a narrow intrinsic absorption bandwidth, and pure Ti suffers from insufficient radiation stability). Second, a novel triple-resonance mechanism is developed to realize multi-scale light manipulation: Mie resonance at the pyramid apex enables high-efficiency absorption of ultraviolet-near-infrared (UV-NIR) light, Fabry-Perot cavities in the gaps trap mid-infrared light, and plasmonic-semiconductor coupling at the Ti/InAs interface achieves a 3–5-fold enhancement of the local electric field. Third, the symmetric structure ensures polarization independence and incident angle insensitivity, addressing the issue of performance degradation of traditional absorbers under oblique incidence. Finite Difference Time Domain (FDTD) simulations combined with preliminary experimental verification confirm the excellent performance of this design: the broadband average absorption rate in the 280–3000 nm range reaches 99.06 %, and the weighted average absorption efficiency under AM1.5 conditions is 99.02 % with a solar energy loss of only 0.98. It maintains high radiation efficiency at high temperatures: 97.15 % at 1000 K and 97.77 % at 1200 K (benefiting from the high-temperature stability of Ti (melting point: 1668 °C) and the enhanced high-temperature carrier excitation of InAs). Even when the incident angle increases from 0° to 60°, the weighted average absorption efficiency of transverse electric (TE) waves and transverse magnetic (TM) waves remains &gt;91.05 %, outperforming similar symmetric structure. This study realizes the integration of ultra-broadband absorption, high-temperature stable emission, and angle/polarization insensitivity, providing a new paradigm for high-performance solar energy collection and photothermal conversion systems.</div></div>","PeriodicalId":20181,"journal":{"name":"Physica E-low-dimensional Systems & Nanostructures","volume":"175 ","pages":"Article 116377"},"PeriodicalIF":2.9,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Theoretical design of Zr2B as a universal electrode for multivalent (Li, Na, K, Mg, Ca) ion batteries","authors":"Ming-Liang Qin ,&nbsp;Cheng-Wei Lv ,&nbsp;Yu-Pu He,&nbsp;Shao-Yi Wu,&nbsp;Qin-Sheng Zhu","doi":"10.1016/j.physe.2025.116375","DOIUrl":"10.1016/j.physe.2025.116375","url":null,"abstract":"<div><div>Rechargeable metal-ion batteries demand advanced anode materials that simultaneously offer high storage capacity, rapid ion transport, and structural robustness. This study conducts first-principles computation using density functional theory (DFT) to systematically estimate the promising of a two-dimensional (2D) Zr₂B monolayer as an anode material for Li, Na, K, Mg and Ca-ion batteries (LIBs, NIBs, KIBs, MIBs and CIBs). The results indicate that Zr₂B exhibits outstanding mechanical integrity, thermal and kinetic stability, and metallic conductivity favorable for efficient electron transport. Remarkably, the migration barriers of alkali metal ions (Li, Na, and K) on the Zr₂B surface are exceptionally low. Particularly, Na presents a barrier of only 6 meV, remarkably smaller than the reported values for most MXenes. In addition, the open-circuit voltages (OCV) values for Li, Na, and K remain well-aligned with the ideal voltage window (0.1–1.0 V), enabling high energy density and mitigating dendrite risks. The results suggest that Zr₂B is a strong contender for use in advanced MXene-based anodes and provide valuable implications for future electrode development.</div></div>","PeriodicalId":20181,"journal":{"name":"Physica E-low-dimensional Systems & Nanostructures","volume":"175 ","pages":"Article 116375"},"PeriodicalIF":2.9,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}