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Subdiffusion is argued to be forbidden in a classical homogenous Hamiltonian system due to finiteness of the Poincaré recurrence time. Recently, long-range-interaction-induced subdiffusion has been revealed, which questions the above argument. In this Letter, we study a one-dimensional φ^{4} lattice and present convincing evidence in various aspects that in strong nonlinearity regimes energy transport can be subdiffusive in such a system with neither disorder nor long-range interaction. The calculation of energy diffusivity and conductivity both indicate subdiffusive energy transport and they are in quantitatively consistent with each other. The normal-to-subdiffusive conversion can be understood by match and mismatch between the power spectra and the phonon band of the lattice.
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http://dx.doi.org/10.1103/m5q3-mcrg | DOI Listing |
Inorg Chem
September 2025
Synthesis and Characterization of Innovative Materials, TUM School of Natural Sciences, Department of Chemistry, Technical University of Munich, Lichtenbergstraße 4, Garching b. München 85748, Germany.
Semiconductors with one-dimensional (1D) substructures are promising for next-generation optical and electronic devices due to their directional transport and flexibility. Representatives of this class include HgPbP-type materials. This study investigates the related semiconductors AgGeP and AgSnP.
View Article and Find Full Text PDFHealth Phys
September 2025
Nuclear and Radiological Engineering and Medical Physics Programs, George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA.
External exposure due to secondary photons (predominantly bremsstrahlung) generated from electron source emissions in environmental soil are of concern due to their ability to deposit significant amounts of ionizing energy to organs and tissues within the body. The "condensed history method" employed in many modern Monte Carlo (MC) codes may be used to simulate secondary photon yields (given as photons per beta decay) arising from electron source emissions with relatively few assumptions regarding the secondary photon spatial, energy, and angular dependencies. These yields may in turn be used to derive protection quantities such as secondary photon effective dose rate (DR) and risk coefficients for a variety of idealized external exposure scenarios.
View Article and Find Full Text PDFJ Phys Chem Lett
September 2025
School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, People's Republic of China.
Inverted quantum dot light-emitting diodes (QLEDs) show great promise for next-generation displays due to their compatibility with integrated circuit architectures. However, their development has been hindered by inefficient exciton utilization and charge transport imbalance. Here, we present a strategy for regulating charge-exciton dynamics through the rational design of a multifunctional hole transport layer (HTL), incorporating polyethylenimine ethoxylated (PEIE) as a protective interlayer in fully-solution-processed inverted red QLEDs.
View Article and Find Full Text PDFPhytopathology
September 2025
Guizhou University, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Huaxi District, Guiyang, Guizhou Province of China, Guiyang, China, 550025;
Osthole exhibits strong inhibitory activity against phytopathogenic fungi; however, its antifungal mechanism remains unclear. This study assessed osthole's inhibitory effects on several phytopathogenic fungi, revealing a half-maximal effective concentration of 70.03 μg/ml against the hyphal growth of .
View Article and Find Full Text PDFInorg Chem
September 2025
Institute of Inorganic and Analytical Chemistry, University of Münster, Corrensstraße 28/30, 48149 Münster, Germany.
Isovalent anion substitution has been shown to have a tremendous effect on the transport properties in lithium halide solid ionic conductors. Although sodium-ion solid state batteries based on chloride ionic conductors have recently gathered significant attention, investigations of anion substitution in sodium containing chlorides remain scarce. Here, we investigate the role of Br isoelectronic anion substitution in a perovskite-related compound with nominal composition of NaTaCl.
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