Article
Physics, Multidisciplinary
Antonio Piscitelli, Antonio Coniglio, Annalisa Fierro, Massimo Pica Ciamarra
Summary: The dimensional dependence of percolative exponents of the jamming transition was determined via numerical simulations in four and five spatial dimensions, indicating jamming as a mixed first-order percolation transition with specific critical exponents. The upper critical dimension and connectedness length exponent were also discussed in this study.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2021)
Article
Chemistry, Physical
Mostafa Naderi, Arash Karimipour
Summary: The study utilized MD method to simulate H2O/CNT nanofluid, revealing that CNT nanoparticles affect the physical properties of the base fluid and can be used for thermal conductance procedures with high efficiency.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Yuri E. Kandrashkin, Ruslan B. Zaripov
Summary: Precise magnetic field calibration is necessary for measurements of electron paramagnetic resonance (EPR) near the saturation region of iron-core electromagnets. Endohedral fullerenes Sc-2@C-80(CH2Ph) have unique spectral features that can serve as benchmarks for magnetic field calibration. The calibration procedure is explained and verified using theoretical calculations and experimental data.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
C. Shang, Z. C. Xia, Y. Q. Wang, X. Z. Zhai, H. Y. Dai, D. W. Liu
Summary: The effects of Al3+ doping on the ferromagnetic metallic state of La0.55Ca0.45MnO3 were investigated. Ceramics with different Al3+ doping concentrations (x = 0, 0.05, 0.1, 0.15) were prepared and various measurements such as ac susceptibility, relaxation, magnetization, and resistivity were performed. The Al3+ dopants and oxygen vacancies induced magnetic disorder, resulting in a phase separated behavior with short-range charge ordered antiferromagnetic clusters. The samples exhibited Griffith-like behavior due to the presence of short-range ferromagnetic clusters in the paramagnetic phase. A spin-glass state was observed in the 15% Al3+ doping sample. The 10% Al3+ doping system exhibited a metastable state and a sharp metamagnetic transition was induced by applying a high magnetic field, leading to the growth of ferromagnetic clusters. The conducting ferromagnetic domains rapidly grew when a high magnetic field was applied, causing a percolative insulating-to-metallic state transition with a sharp drop in resistivity. (c) 2023 Elsevier B.V. All rights reserved.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Physics, Mathematical
Peter Gracar, Arne Grauer, Peter Moerters
Summary: In this study, we analyze geometric random graphs defined on the points of a Poisson process in d-dimensional space, with additional independent random marks. Our framework includes various graph models, such as the soft Boolean model and spatial preferential attachment, that exhibit scale-free degree distributions and have edges spanning large distances. We provide sharp criteria for absence of ultrasmallness and establish a limit theorem for the chemical distance of two points in the ultrasmall regime. The boundary of the ultrasmall regime depends not only on the power-law exponent of the degree distribution, but also on the spatial embedding of the graph.
COMMUNICATIONS IN MATHEMATICAL PHYSICS
(2022)
Article
Physics, Mathematical
Christoforos Panagiotis, Franco Severo
Summary: We prove that cluster observables of level-sets of the Gaussian free field on the hypercubic lattice Z(d) are analytic on the whole off-critical regime. We also show exponential decay in probability for the capacity of a finite cluster, which is of independent interest. The case of general transient graphs is also discussed.
COMMUNICATIONS IN MATHEMATICAL PHYSICS
(2022)
Article
Statistics & Probability
Marcelo Hilario, Daniel Ungaretti
Summary: In this study, we investigate the independent alignment percolation model on Z(d) introduced by Beaton, Grimmett, and Holmes. By analyzing the critical value lambda(c) and the critical curve p bar right arrow lambda(c), we prove that the phase transition in the whole interval (0, 1] is non-trivial and continuous at p=1.
Article
Nanoscience & Nanotechnology
Tengfei Hu, Zhengqian Fu, Zhenqin Li, Meng Liu, Linlin Zhang, Ziyi Yu, Xuefeng Chen, Yunzhe Zheng, Tie Li, Yuelin Wang, Genshui Wang, Xianlin Dong, Fangfang Xu
Summary: Antiferroelectric materials are promising candidates for pulsed power capacitors due to their polarization versus electric-field hysteresis loops. In this study, in situ biasing transmission electron microscopy was used to decode the energy-storage behaviors in the (Pb,La)(Zr,Sn,Ti)O-3 system. The multiple phase transitions mechanism is crucial for achieving high energy-storage performance in antiferroelectric materials.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
E. P. Domashevskaya, S. A. Ivkov, A. Sitnikov, O. Stogney, A. T. Kozakov, A. Nikolsky, K. A. Barkov, N. S. Builov
Summary: The influence of the relative content of the metal component on the phase composition and substructure of (CoFeZr)(x)(MgF2)(100-x) film nanocomposites has been studied. At lower metal component content, the CoFeZr metal alloy is in the X-ray amorphous state, while at higher content, the MgF2 matrix becomes X-ray amorphous and CoFeZr alloy nanocrystals are formed with different structures.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Physics, Multidisciplinary
I. Bonamassa, B. Gross, M. Laav, I. Volotsenko, A. Frydman, S. Havlin
Summary: Cascades are self-amplifying processes caused by feedback mechanisms, and this study successfully demonstrates an experimental realization of an interdependent system using a multilayer network of two disordered superconductors separated by an electric insulating film. The results show that large driving currents induce Joule heating effects, acting as dependency links between the superconducting layers and igniting overheating cascades through adaptive and heterogeneous electrothermal feedback. This laboratory manifestation of interdependent systems enables further experimental studies on controlling and developing complex interdependent materials' multiscale phenomena.
Article
Materials Science, Multidisciplinary
Youngoh Kim, Joonmyung Choi
Summary: In the design and manufacturing of ultra-fine grained materials, the competitive relationship between grain growth and intergranular bonding under thermal loads is crucial. This study investigated the initiation of load transfer through the glassy disordered phase during the binding of Y2O3 nanoparticles. The analysis showed that yttrium cations and oxygen anions play opposing mechanical roles within the disordered phase.
Article
Multidisciplinary Sciences
Zaneta Wojnarowska, Shinian Cheng, Beibei Yao, Malgorzata Swadzba-Kwasny, Shannon McLaughlin, Anne McGrogan, Yoan Delavoux, Marian Paluch
Summary: The authors report and characterize a first-order liquid-liquid transition (LLT) in a series of ionic liquids, providing insight into the structure-property relationships governing LLT. Ion dynamics exhibit anomalous behavior during the LLT, with dramatically elongated conductivity relaxation times and broader distribution. The discontinuity in specific volume at LLT was estimated using the Clausius-Clapeyron equation, showing that LLT has an isochronal character similar to liquid-glass transition.
NATURE COMMUNICATIONS
(2022)
Article
Statistics & Probability
Stephen Muirhead, Alejandro Rivera, Hugo Vanneuville, Laurin Kohler-Schindler
Summary: We develop techniques to study the phase transition of planar Gaussian percolation models that are not necessarily positively correlated. We prove the existence of a phase transition at a critical level under certain assumptions, and as a result, we show that all nonzero level lines are bounded almost surely.
ANNALS OF PROBABILITY
(2023)
Article
Multidisciplinary Sciences
Jiarong Xie, Xiangrong Wang, Ling Feng, Jin-Hua Zhao, Wenyuan Liu, Yamir Moreno, Yanqing Hu
Summary: This study investigates the mechanism of both direct and indirect influence in scientific collaboration networks and shows that indirect influence can play the dominant role in behavioral influence. They propose a percolation mechanism of indirect interactions called induced percolation and find unique properties and hybrid phase transitions in directed networks compared to undirected networks. They also present an analytical framework for further understanding network dynamics with indirect interactions.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Statistics & Probability
Janko Gravner, Brett Kolesnik
Summary: We introduce and study a new percolation model that is inspired by recent research in jigsaw percolation, graph bootstrap percolation, and percolation in polluted environments. The model involves occupying additional edges in an oriented graph based on transitivity, with a constraint that only open edges in a random set can be occupied. Different regimes for the eventually occupied edges are identified, depending on the orientation and openness probabilities of the edges. In a more general setting, the transition from sparse to full occupation occurs at a certain probability of open edges. The article concludes with conjectures and open problems.
ANNALS OF APPLIED PROBABILITY
(2023)
Review
Chemistry, Multidisciplinary
Zhuang Liu, Xian Qin, Qihao Chen, Tianci Jiang, Qiushui Chen, Xiaogang Liu
Summary: The self-assembly of nanocrystals into superlattices is a fascinating process that changes geometric morphology and creates unique properties. Metal-halide perovskite nanocrystals have advanced research in this field and exhibit abundant optical features, stimulating basic research and applications.
ADVANCED MATERIALS
(2023)
Editorial Material
Optics
Chenlu He, Xiaogang Liu
Summary: Advances in metal-halide perovskite semiconductors have significantly impacted light-current conversion technologies due to their excellent structural and compositional tunability, as well as exceptional quantum yields for photoluminescence, making them a promising candidate for optoelectronic devices.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Review
Chemistry, Multidisciplinary
Zichao Luo, Zhigao Yi, Xiaogang Liu
Summary: Surface-modified lanthanide nanoparticles have unique properties that make them widely used in cancer treatment. These nanoparticles have diagnostic capabilities suitable for image-guided therapies. They can accommodate therapeutic molecules on their surface, achieve combined cancer therapy, and easily modify targeting ligands for high affinity. They can also be engineered for precise and personalized tumor therapy.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Jiaying Wang, Yikuan Liu, Hanfei Li, Ruihua He, Yang Guo, Jiahui Xu, Ziwei Yu, Xiaogang Liu, Weiping Liu, Zhiyuan Liu, Yihan Zhu, Juan Wang
Summary: Traditional solution-based synthesis methods have limitations in fabricating one-dimensional single-crystalline nanostructures. Here, we introduce a growth mechanism based on progressively oriented attachment, which allows the formation of single-crystalline nanowires with elongated length and moderate thickness. These nanowires can be integrated into a wearable device for multidirectional strain sensing with high responsivity and excellent stability.
Article
Chemistry, Applied
Jun Xu, Wenqiang Xu, Xinhao Zhang, Jie Wu, Pengfei Zhang, Lijuan Song, Xiaogang Liu
Summary: This study demonstrates a divergent and controllable synthesis of quinolones from quinoline scaffolds through sulfonyl chloride-controlled, copper-catalyzed, site-selective radical C-H functionalization/cyclization. The catalytic system shows tolerance to a wide range of functional groups and provides both 2-thioquinolone and 4-quinolone derivatives in moderate to good yields. The mechanism involves single-electron transfer, and the selectivity of the reaction is determined by the steric hindrance and electronic effect of sulfonyl chlorides. This transformation provides a novel example of divergent radical C-H functionalization controlled by small organic molecules and facilitates the rapid derivatization of medicinally important scaffolds for late-stage drug modification.
ADVANCED SYNTHESIS & CATALYSIS
(2023)
Article
Chemistry, Physical
Ruihua He, Abdullah Rasmita, Lei Zhou, Liangliang Liang, Xiangbin Cai, Jiaye Chen, Hongbing Cai, Weibo Gao, Xiaogang Liu
Summary: This research reports the observation of superradiance from mesoscopic CsPbBr3 perovskite emitters, which suggests their potential as low-cost quantum light sources.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Jiaye Chen, Liangliang Liang, Shengdong Tan, Shibo Xi, Chun-Ho Lin, Tom Wu, Qian He, Xiaogang Liu
Summary: To address vacancy problems in the production of high-quality nanoscale crystals, we developed a convenient strategy involving lattice reconstruction and dynamic metal complex docking to produce ultrasmall and bright core-shell upconversion nanoparticles. By utilizing lanthanide ion-oleic acid complexes during post-annealing in solution, we effectively removed vacancies in the nanocrystals and minimized surface quenching, leading to improved performance. Our strategy offers insights into lattice engineering and presents a general method for purifying functional nanocrystals for various applications, such as single-molecule tracking, quantum optics, and energy conversion.
Article
Mathematics
Xiaogang Liu, Kiran Naseem Aslam, Muhammad Shoaib Saleem, Shuili Ren
Summary: In this article, we introduce a general class of convex functions and prove some basic properties. We establish Hermite-Hadamard type inequalities and fractional versions of Hermite-Hadamard type inequalities using the Riemann-Liouville integral operator. Furthermore, we provide applications to special means of real numbers. It is observed from the remarks in this paper that several significant results of ligature can be immediately obtained from our results by selecting suitable involved parameters.
JOURNAL OF MATHEMATICS
(2023)
Letter
Chemistry, Multidisciplinary
Yuanyu Gu, Rafael Pinol, Raquel Moreno-Loshuertos, Carlos D. S. Brites, Justyna Zeler, Abelardo Martinez, Guillaume Maurin-Pasturel, Patricio Fernandez-Silva, Joaquiin Marco-Brualla, Pedro Tellez, Rafael Cases, Rafael Navarro Belsue, Debora Bonvin, Luis D. Carlos, Angel Millan
Article
Chemistry, Multidisciplinary
Luying Yi, Bo Hou, Xiaogang Liu
Summary: Recent advances in materials and semiconductor technologies have led to extensive research on optical integration in wearable, implantable, and swallowable health devices. The potential of these devices is greatly enhanced through the use of multifunctional optical materials, adaptable integration processes, advanced optical sensing principles, and optimized artificial intelligence algorithms, creating many possibilities for clinical applications.
Article
Chemistry, Multidisciplinary
Carlos D. S. Brites, Riccardo Marin, Markus Suta, Albano N. Carneiro Neto, Erving Ximendes, Daniel Jaque, Luis D. Carlos
Summary: Luminescence (nano)thermometry is a remote sensing technique that utilizes the temperature dependency of luminescence features to measure temperature. It has potential applications in various fields and requires the establishment of a theoretical background, standardized practices, and improved readouts through multiparametric analysis and artificial intelligence algorithms. Challenges in luminescence thermometry and the need for continuous innovation are also discussed.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Talita J. S. Ramos, Ricardo L. Longo, Carlos D. S. Brites, Rute A. S. Ferreira, Oscar L. Malta, Luis D. Carlos
Summary: Low-power near-infrared lasers can drive upconversion broadband white light emission. Despite the sensitizer and activator being in different particles, efficient continuous upconversion emissions were observed. The synthesized nanoparticles also functioned as luminescent thermometers with potential applications in remote temperature sensing.
Review
Chemistry, Multidisciplinary
Sofia Zanella, Miguel A. Hernandez-Rodriguez, Rute A. S. Ferreira, Carlos D. S. Brites
Summary: Managing the growing volume of information, progress in the Internet-of-Things, and evolution from digitalization to networking are challenging technological tasks. Molecular logic gates, which can be stimulated by various chemical or physical signals and produce optical outputs, are recognized as potential solutions for future computing systems. Ln(3+)-based materials are commendable choices for molecular logic due to their ability to respond to both chemical and physical stimuli, as well as their unique photophysical properties. This review critically examines illustrative molecular logic systems based on Ln(3+) ions and discusses their potential for integration in future molecular photonic-electronic hybrid logic computing systems.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Yuanyu Gu, Rafael Pinol, Raquel Moreno-Loshuertos, Carlos D. S. Brites, Justyna Zeler, Abelardo Martinez, Guillaume Maurin-Pasturel, Patricio Fernandez-Silva, Joaquin Marco-Brualla, Pedro Tellez, Rafael Cases, Rafael Navarro Belsue, Debora Bonvin, Luis D. Carlos, Angel Millan
Summary: The generation of temperature gradients on nanoparticles heated externally by a magnetic field is crucial in magnetic hyperthermia therapy. However, the low heating power of magnetic nanoparticles limits the technique's implementation. This paper reports the real-time measurement of local temperature on gamma-Fe2O3 magnetic nanoheaters, showing that even within health safety limits, local temperature increments are sufficient to cause cell death, demonstrating the feasibility of local hyperthermia.
