We use numerical simulations and an effective-medium theory to study the rigidity percolation transition of the honeycomb and diamond lattices when weak bond-bending forces are included. We use a rotationally invariant bond-bending potential, which, in contrast to the Keating potential, does not involve any stretching. As a result, the bulk modulus does not depend on the bending stiffness κ. We obtain scaling functions for the behavior of some elastic moduli in the limits of small ΔP = 1-P, and small δP = P-Pc, where P is an occupation probability of each bond, and Pc is the critical probability at which rigidity percolation occurs. We find good quantitative agreement between effective-medium theory and simulations for both lattices for P close to one.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1088/0953-8984/28/16/165402 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A two-step hydrothermal method for micro/nanotextured titanium implants and their integration outcomes in goat mandible.
Nanomedicine (Lond)
January 2025
Department of Periodontics, Dr. R. Ahmed Dental College and Hospital, Kolkata, West Bengal, India.
Background: A crucial aspect of contemporary dental implant research is modifying implant microdesign to achieve early and robust osseointegration. This study describes a new facile subtraction approach for microdesign modification of titanium implants using akali-hydrothermal followed by ion-exchange reaction (AHIE) in a salt solution, and compares osseointegration performance to machined titanium alloy (negative control) implants.
Methods: The morphology, wettability, and roughness of the implant surfaces were evaluated.
Kitaev interactions through extended superexchange pathways in the Ru honeycomb magnet RuPSiO.
Nat Commun
November 2024
School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
Magnetic materials are composed of the simple building blocks of magnetic moments on a crystal lattice that interact via magnetic exchange. Yet from this simplicity emerges a remarkable diversity of magnetic states. Some reveal the deep quantum mechanical origins of magnetism, for example, quantum spin liquid (QSL) states in which magnetic moments remain disordered at low temperatures despite being strongly correlated through quantum entanglement.
View Article and Find Full Text PDFNucleation Mechanism of Hexagonal Boron Nitride on Diamond (111) and Its Hydrogen-Terminated Surface: A DFT Study.
Langmuir
September 2024
National Center for International Joint Research of Electronic Materials and Systems, International Joint-Laboratory of Electronic Materials and Systems of Henan Province, College of Electrical and Information Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China.
Hexagonal boron nitride (h-BN) has attracted significant attention due to its exceptional properties. Among various substrates used for h-BN growth, diamond emerges as a more promising substrate due to its high-temperature resistance and superior electrical properties. To reveal the nucleation mechanism of h-BN on the diamond (111) surface and the impact of hydrogenation treatment on this process, we explored the adsorption, diffusion, nucleation morphologies, and predicted nucleation pathways in this process using first-principles calculations based on density functional theory (DFT).
View Article and Find Full Text PDFAn enhanced IL17 and muted type I interferon nasal epithelial cell state characterizes severe COVID-19 with fungal coinfection.
Microbiol Spectr
June 2024
Division of Digestive Diseases, University of Mississippi Medical Center, Jackson, Mississippi, USA.
Unlabelled: Recent case reports and epidemiological data suggest that fungal infections represent an underappreciated complication among people with severe COVID-19. However, the frequency of fungal colonization in patients with COVID-19 and associations with specific immune responses in the airways remain incompletely defined. We previously generated a single-cell RNA-sequencing data set characterizing the upper respiratory microenvironment during COVID-19 and mapped the relationship between disease severity and the local behavior of nasal epithelial cells and infiltrating immune cells.
View Article and Find Full Text PDFExotic hexagonal NaCl atom-thin layer on methylammonium lead iodide perovskite: new hints for perovskite solar cells from first-principles calculations.
Phys Chem Chem Phys
January 2024
INSTM-GISEL, National Interuniversity Consortium of Materials Science and Technology (INSTM), Florence, Italy.
Alkali halides are simple inorganic compounds extensively used as surface modifiers in optoelectronic devices. In perovskite solar cells (PSCs), they act as interlayers between the light absorber material and the charge selective layers improving their contact quality. They introduce surface dipoles that enable the fine tuning of the relative band alignment and passivate surface defects, a well-known drawback of hybrid organic-inorganic perovskites, that is responsible for most of the issues hampering the long-term performances.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!