Journal of Physics: Condensed Matter最新文献

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Resistively detected electron spin resonance andg-factor in few-layer exfoliated MoS2devices.
IF 2.3 4区 物理与天体物理
Journal of Physics: Condensed Matter Pub Date : 2025-04-01 DOI: 10.1088/1361-648X/adc35d
Chithra H Sharma, Appanna Parvangada, Lars Tiemann, Kai Rossnagel, Jens Martin, Robert H Blick
{"title":"Resistively detected electron spin resonance and<i>g-</i>factor in few-layer exfoliated MoS<sub>2</sub>devices.","authors":"Chithra H Sharma, Appanna Parvangada, Lars Tiemann, Kai Rossnagel, Jens Martin, Robert H Blick","doi":"10.1088/1361-648X/adc35d","DOIUrl":"10.1088/1361-648X/adc35d","url":null,"abstract":"<p><p>MoS<sub>2</sub>has recently emerged as a promising material for enabling quantum devices and spintronic applications. In this context, an improved physical understanding of the<i>g</i>-factor of MoS<sub>2</sub>depending on device geometry is of great importance. Resistively detected electron spin resonance (RD-ESR) could be employed to determine the<i>g</i>-factor in micron-scale devices. However, its application and RD-ESR studies have been limited by Schottky or high-resistance contacts to MoS<sub>2</sub>. Here, we exploit naturally<i>n</i>-doped few-layer MoS<sub>2</sub>devices with ohmic tin (Sn) contacts that allow the electrical study of spin phenomena. Resonant excitation of electron spins and resistive detection is a possible path to exploit the spin effects in MoS<sub>2</sub>devices. Using RD-ESR, we determine the<i>g</i>-factor of few-layer MoS<sub>2</sub>to be ∼1.92 and observe that the<i>g</i>-factor value is independent of the charge carrier density within the limits of our measurements.</p>","PeriodicalId":16776,"journal":{"name":"Journal of Physics: Condensed Matter","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143670187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 0
Regulation of Transition Temperature and Magnetic Anisotropy in 2D Multiferroic Monolayer through Electron Donating and Withdrawing Groups Adsorption.
IF 2.3 4区 物理与天体物理
Journal of Physics: Condensed Matter Pub Date : 2025-03-31 DOI: 10.1088/1361-648X/adc77b
Chee Kian Yap, Lei Zhang, Aijun Du, Cheng Tang
{"title":"Regulation of Transition Temperature and Magnetic Anisotropy in 2D Multiferroic Monolayer through Electron Donating and Withdrawing Groups Adsorption.","authors":"Chee Kian Yap, Lei Zhang, Aijun Du, Cheng Tang","doi":"10.1088/1361-648X/adc77b","DOIUrl":"https://doi.org/10.1088/1361-648X/adc77b","url":null,"abstract":"<p><p>The discovery of two-dimensional (2D) magnetic materials ushers in the engineering of future magnetoelectric nanodevices and spintronics, however, it is limited by the lack of a material platform with simultaneously large magnetic anisotropy and high transition temperature. Using a recently synthesized CrSe2 monolayer as a demonstration, the impact on magnetism and electronics is studied via first-principles calculations by functionalizing the monolayer with electron-donating and electron-withdrawing groups namely NH2 and NO2. The magnetic ground state of the CrSe2 changes from the stripe antiferromagnetic to the ferromagnetic state after functionalization. The transition temperature of CrSe2-NO2 and CrSe2-NH2 enhances to 105 and 70 K, respectively, due to the expansion of the CrSe2 superlattice. Besides, the magnetic anisotropy energy (MAE) of the CrSe2-NO2 increases to 1.12 meV/Cr along the in-plane direction due to the electron-withdrawing effect of the NO2 group. Oppositely, the electron-donating effect will decrease the MAE. Moreover, robust out-of-plane electric polarization is induced into the functionalized CrSe2 monolayer, relying on the semiconducting nature and asymmetric geometry along the z direction. These findings demonstrate the critical role of functional groups in regulating the magnetic and electronic properties of 2D multiferroic structures, providing a general approach for controllable 2D spintronic applications.&#xD.</p>","PeriodicalId":16776,"journal":{"name":"Journal of Physics: Condensed Matter","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143753228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 0
Tunable higher-order non-Hermitian skin effect in the SSH topolectrical circuits.
IF 2.3 4区 物理与天体物理
Journal of Physics: Condensed Matter Pub Date : 2025-03-31 DOI: 10.1088/1361-648X/adc35b
Lebin Wang, Wei Lin, Banxian Ruan, Yuanjiang Xiang, Xiaoyu Dai
{"title":"Tunable higher-order non-Hermitian skin effect in the SSH topolectrical circuits.","authors":"Lebin Wang, Wei Lin, Banxian Ruan, Yuanjiang Xiang, Xiaoyu Dai","doi":"10.1088/1361-648X/adc35b","DOIUrl":"10.1088/1361-648X/adc35b","url":null,"abstract":"<p><p>Non-Hermitian systems reveal a wide range of fascinating physical phenomena beyond those found in Hermitian systems, drawing significant interest. Among these phenomena, the non-Hermitian skin effect (NHSE) is particularly notable. This effect enables the bulk states to collapse toward the boundaries and manifest as localized states. In this study, we report an experimental realization of a tunable higher-order NHSE in the Su-Schrieffer-Heeger (SSH) topolectrical circuits. Our experiments were conducted on specially designed one-dimensional and two-dimensional SSH tight-binding circuit networks. Two types of NHSEs with distinct angular localized modes (the diagonal distributed topological-skin mode and the isolated skin-skin angular mode) have been confirmed theoretically and experimentally. By controlling operational amplifiers and other electronic components, we could predict and tunable the skin effect modes in varying dimensions. The tunable NHSEs can be applied to guide waves into target regions, which can offer a number of valuable potential applications.</p>","PeriodicalId":16776,"journal":{"name":"Journal of Physics: Condensed Matter","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143670190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 0
Machine learning-assisted study on the thermal transport properties of two-dimensional M3(C6O6)2 (M=Fe, Co, Ni) materials.
IF 2.3 4区 物理与天体物理
Journal of Physics: Condensed Matter Pub Date : 2025-03-31 DOI: 10.1088/1361-648X/adc77c
Meng-Jiao Teng, Li-Qin Deng, Pin-Zhen Jia, Wu-Xing Zhou
{"title":"Machine learning-assisted study on the thermal transport properties of two-dimensional M3(C6O6)2 (M=Fe, Co, Ni) materials.","authors":"Meng-Jiao Teng, Li-Qin Deng, Pin-Zhen Jia, Wu-Xing Zhou","doi":"10.1088/1361-648X/adc77c","DOIUrl":"https://doi.org/10.1088/1361-648X/adc77c","url":null,"abstract":"<p><p>Two-dimensional metal-organic frameworks (MOF) are widely used in electronic devices and energy storage due to their large surface area, abundant active sites, and tunable sizes. A deeper understanding of the thermal transport properties of two-dimensional MOF materials is essential for these applications. In this work, we systematically studied the thermal transport properties of M3(C6O6)2 (M = Fe, Co, Ni) by using a machine learning interatomic potential (MLIP) method combined with the phonon Boltzmann transport equation (PBTE). The results show that the lattice thermal conductivities of Fe3(C6O6)2, Co3(C6O6)2, and Ni3(C6O6)2 at room temperature are 4.0 W/mK, 5.5 W/mK, and 5.8 W/mK, respectively. The differences in thermal conductivity primarily arise from variations in phonon relaxation times, which can be elucidated by examining the three-phonon scattering phase space. Further analysis of bond strengths reveals that the strong bonding between Fe and O impedes phonon propagation through the oxygen atoms, resulting in lower lattice thermal conductivity. Our work provides a fundamental reference for understanding thermal transport in two-dimensional MOF.&#xD.</p>","PeriodicalId":16776,"journal":{"name":"Journal of Physics: Condensed Matter","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143753226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 0
Unraveling the topological phase in Zintl semiconductors RbZn4X3(X = P, As) through band engineering.
IF 2.3 4区 物理与天体物理
Journal of Physics: Condensed Matter Pub Date : 2025-03-31 DOI: 10.1088/1361-648X/adc17e
Ramesh Kumar, Rajesh Kumar, Antik Sihi, Mukhtiyar Singh
{"title":"Unraveling the topological phase in Zintl semiconductors RbZn<sub>4</sub>X<sub>3</sub>(X = P, As) through band engineering.","authors":"Ramesh Kumar, Rajesh Kumar, Antik Sihi, Mukhtiyar Singh","doi":"10.1088/1361-648X/adc17e","DOIUrl":"10.1088/1361-648X/adc17e","url":null,"abstract":"<p><p>We report the topological phase transition (TPT) in compounds of relatively less explored Zintl family RbZn<sub>4</sub>X<sub>3</sub>(X = P, As) via<i>first-principles</i>calculation. These intermetallic compounds have already been experimentally synthesized in a<i>KCu<sub>4</sub>S<sub>3</sub>-type</i>tetragonal structure (P4/mmm) and reported to have a topologically trivial semimetallic nature with a direct band gap. We thoroughly studied the electronic structure, stability of RbZn<sub>4</sub>X<sub>3</sub>(X = P, As) and demonstrated the TPTs in these materials with external applied pressure and epitaxial strain. The dynamical and mechanical stabilities of these compounds are verified through phonon dispersion and Born stability criteria at ambient and TPT pressure/strain. A topologically non-trivial phase in RbZn<sub>4</sub>P<sub>3</sub>(RbZn<sub>4</sub>As<sub>3</sub>) is observed at 45 GPa (38 GPa) of hydrostatic pressure and 10% (8%) of epitaxial strain. This non-trivial phase is identified by band inversion between<i>Zn-s</i>and<i>P/As-p<sub>z</sub>orbitals</i>in the bulk band structure of these materials which is further confirmed using the surface density of states and Fermi arc contour in<i>(001)-plane</i>. The ℤ<sub>2</sub>topological invariants (<i>ν</i><sub>0</sub><i>; ν</i><sub>1</sub><i>ν</i><sub>2</sub><i>ν</i><sub>3</sub>) for these materials are calculated using the product of parities of all filled bands (Kane and Mele model) and the evolution of Wannier charge centers (Wilson loop method). The change in values of (<i>ν</i><sub>0</sub><i>; ν</i><sub>1</sub><i>ν</i><sub>2</sub><i>ν</i><sub>3</sub>) from (<i>0; 000</i>) to (<i>1; 000</i>), at the particular values of pressure and strain, is another signature of the TPT in these materials.</p>","PeriodicalId":16776,"journal":{"name":"Journal of Physics: Condensed Matter","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143649435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 0
Hysteresis and pyroelectric behaviour at isomorphic transition in green CsSnI3.
IF 2.3 4区 物理与天体物理
Journal of Physics: Condensed Matter Pub Date : 2025-03-31 DOI: 10.1088/1361-648X/adbead
Prem C Bharti, Priyanka A Jha, Pardeep K Jha, Prabhakar Singh
{"title":"Hysteresis and pyroelectric behaviour at isomorphic transition in green CsSnI<sub>3</sub>.","authors":"Prem C Bharti, Priyanka A Jha, Pardeep K Jha, Prabhakar Singh","doi":"10.1088/1361-648X/adbead","DOIUrl":"10.1088/1361-648X/adbead","url":null,"abstract":"<p><p>Lead-free perovskite halide CsSnI<sub>3</sub>has emerged as a promising material for optoelectronic applications due to its direct bandgap (1.3-1.4 eV), high charge carrier mobility, and strong visible-spectrum absorption. Among its polymorphs, the green phase, with a favorable bandgap of ∼1.24 eV, demonstrates enhanced structural stability and resistance to phase degradation under ambient conditions. In this study, we investigate the green polymorph of CsSnI<sub>3</sub>and observe pyroelectric behavior, indicative of ferroelectric-like properties despite its globally centrosymmetric (Pa3-) cubic structure. Utilizing Piezo-force microscopy, dielectric measurements, impedance spectroscopy, and Raman spectroscopy, we identified local non-centrosymmetry influencing hysteresis and conduction properties. Impedance spectroscopy further reveals the interaction of grains and grain boundaries under a low AC electric field, both before and after light exposure and poling. A reduction in relaxation time with increasing temperature in poled samples is observed, while the combined effects of light exposure and poling result in an increased relaxation time. Our results indicate that local non-centrosymmetry plays a critical role in influencing hysteresis and conduction behavior. These findings highlight the importance of phase transitions and vibrational mode dynamics in optimizing the performance of CsSnI<sub>3</sub>-based devices, paving the way for their broader application in advanced optoelectronic technologies.</p>","PeriodicalId":16776,"journal":{"name":"Journal of Physics: Condensed Matter","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143597159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 0
On-surface C-C coupling reactivity of carbon atoms in halogenated azulene.
IF 2.3 4区 物理与天体物理
Journal of Physics: Condensed Matter Pub Date : 2025-03-31 DOI: 10.1088/1361-648X/adc35c
Wenxun Feng, Yanbo Li, Jianmin Huang, Junlong Ma, Xisha Zhang, Deqing Zhang, Qitang Fan, Bing Wang
{"title":"On-surface C-C coupling reactivity of carbon atoms in halogenated azulene.","authors":"Wenxun Feng, Yanbo Li, Jianmin Huang, Junlong Ma, Xisha Zhang, Deqing Zhang, Qitang Fan, Bing Wang","doi":"10.1088/1361-648X/adc35c","DOIUrl":"10.1088/1361-648X/adc35c","url":null,"abstract":"<p><p>Azulene molecule, consisting of a pair of five and seven-membered rings, represents a promising precursor for the on-surface synthesis of nonbenzenoid, nonalternant carbon nanostructures with exotic properties. However, controlling the selective C-C coupling between azulene molecules remains elusive, undermining the structural uniformity of the attained carbon nanostructures. Here, we report that the on-surface C-C coupling reactivity of different carbon atom sites in azulene relies on the spatial distribution of its frontier orbitals. By performing surface reactions of a tribrominated azulene molecule on Au(111), the probability of C-C coupling between carbon atoms at different sites of azulene has been revealed by scanning tunneling microscopy and non-contact atomic force microscopy. These findings are in accordance with the density functional theory-calculated energy barriers for the corresponding C-C coupling reaction steps.</p>","PeriodicalId":16776,"journal":{"name":"Journal of Physics: Condensed Matter","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143670186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 0
Electrical resistivity of ErB2under pressure. ErB2 在压力下的电阻率。
IF 2.3 4区 物理与天体物理
Journal of Physics: Condensed Matter Pub Date : 2025-03-31 DOI: 10.1088/1361-648X/adc77a
Anh Tong, Daria Nuzhina, Christoph Bernhard Bernhard Resch, Georg Benka, Andreas Bauer, Christian Pfleiderer
{"title":"Electrical resistivity of ErB<sub>2</sub>under pressure.","authors":"Anh Tong, Daria Nuzhina, Christoph Bernhard Bernhard Resch, Georg Benka, Andreas Bauer, Christian Pfleiderer","doi":"10.1088/1361-648X/adc77a","DOIUrl":"https://doi.org/10.1088/1361-648X/adc77a","url":null,"abstract":"<p><p>Diborides<i>A</i>B<sub>2</sub>crystallizing in the hexagonal C32 structure exhibit a wide range of magnetic and electronic properties depending on the choice of the element<i>A</i>and the precise values of the lattice constants<i>a</i>and<i>c</i>. ErB<sub>2</sub>represents a typical rare-earth diboride, exhibiting easy-plane ferromagnetic order below 14 K. We report a study of the evolution of the electrical transport properties of ErB<sub>2</sub>when tuning the lattice constants under pressures up to 5.6 GPa. Using Bridgman-type pressure cells with polycrystalline diamond anvils and steatite as the solid pressure medium, quasi-hydrostatic conditions are provided. We find that magnetic order is stabilized under pressure and discuss the influence of uniaxial components by comparing measurements on polycrystalline and single-crystalline samples.</p>","PeriodicalId":16776,"journal":{"name":"Journal of Physics: Condensed Matter","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143753225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 0
Silica-Binding Peptides: Physical Chemistry and Emerging Biomaterials Applications.
IF 2.3 4区 物理与天体物理
Journal of Physics: Condensed Matter Pub Date : 2025-03-28 DOI: 10.1088/1361-648X/adc6e2
Wilson Alberto Tárraga, Marilina Cathcarth, Agustin S Picco, Gabriel S Longo
{"title":"Silica-Binding Peptides: Physical Chemistry and Emerging Biomaterials Applications.","authors":"Wilson Alberto Tárraga, Marilina Cathcarth, Agustin S Picco, Gabriel S Longo","doi":"10.1088/1361-648X/adc6e2","DOIUrl":"https://doi.org/10.1088/1361-648X/adc6e2","url":null,"abstract":"<p><p>Silica-binding peptides (SBPs) are increasingly recognized as versatile tools for various applications spanning biosensing, biocatalysis, and environmental remediation.&#xD;This review explores the interaction between these peptides and silica surfaces, offering insights into how variables such as surface silanol density, peptide sequence and composition, and solution conditions influence binding affinity.&#xD;Key advancements in SBP applications are discussed, including their roles in protein purification, biocatalysis, biosensing, and biomedical engineering.&#xD;By examining the underlying binding mechanisms and exploring their practical potential, this work provides a comprehensive understanding of how SBPs can drive innovations in materials science and biotechnology.</p>","PeriodicalId":16776,"journal":{"name":"Journal of Physics: Condensed Matter","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143743021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 0
Defects in oxide ultrathin films and 2D materials.
IF 2.3 4区 物理与天体物理
Journal of Physics: Condensed Matter Pub Date : 2025-03-28 DOI: 10.1088/1361-648X/adc05f
Falko P Netzer, Svetlozar Surnev
{"title":"Defects in oxide ultrathin films and 2D materials.","authors":"Falko P Netzer, Svetlozar Surnev","doi":"10.1088/1361-648X/adc05f","DOIUrl":"10.1088/1361-648X/adc05f","url":null,"abstract":"<p><p>Defects, that are irregularities in crystal lattices, create special sites or regions of particular geometry, electronic structure and activity that influence the physical and chemical behavior of the materials in a significant way. Here we examine published work on defects in two-dimensional (2D) oxide systems. The latter have attracted interest and significance in many areas of modern science and technology in recent years. The defects are classified according to their dimensionality: point defects, line defects and 2D specific topological defects are considered. Key features of the different defect types are illustrated and discussed with selected prototypical examples.</p>","PeriodicalId":16776,"journal":{"name":"Journal of Physics: Condensed Matter","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143625036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 0
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