Results 11 to 20 of about 14,177,191 (172)

Valley transport in Kekulé structures of graphene [PDF]

open access: hybridChinese Physics B, 2023
Valleytronics is an emergent discipline in condensed matter physics and offers a new way to encode and manipulate information based on the valley degree of freedom in materials.
Juan Juan Wang, Jun Wang
openalex   +2 more sources

Relating resonance energy with the Zhang-Zhang polynomial [PDF]

open access: yesJournal of the Serbian Chemical Society, 2007
The Zhang-Zhang polynomial ζ(x) is a recently conceived tool in the mathematical apparatus of theoretical chemistry. It combines (in a quantitative manner) the Kekulé- and Clar-structure-based features of benzenoid molecules.
Gojak Sabina   +3 more
doaj   +3 more sources

Algebraic structure count of liner phenylenes and their congeners [PDF]

open access: yesJournal of the Serbian Chemical Society, 2003
The algebraic structure count of the linear phenylene with h six-membered rings is known to be equal to h + 1. We show that the same expression applies if each four-membered ring in the phenylene is replaced by a linear array consisting of k four ...
Gutman Ivan
doaj   +1 more source

Topological vortex mode for flexural waves in pillared plates

open access: yesMaterials & Design, 2023
Localized topological modes with high robustness to various perturbations are receiving increasing attention. Recently, zero-order topological vortex modes have been designed in phononic structures, in analogy with zero-energy fermionic states modulated ...
Zhihui Wen   +7 more
doaj   +1 more source

Zhang–Zhang Polynomials of Multiple Zigzag Chains Revisited: A Connection with the John–Sachs Theorem

open access: yesMolecules, 2021
Multiple zigzag chains Zm,n of length n and width m constitute an important class of regular graphene flakes of rectangular shape. The physical and chemical properties of these basic pericondensed benzenoids can be related to their various topological ...
Henryk A. Witek
doaj   +1 more source

The electronic structure of benzene from a tiling of the correlated 126-dimensional wavefunction

open access: yesNature Communications, 2020
The electronic structure of benzene has been a test bed for competing theories along the years. Here the authors show via quantum chemistry calculations that the wavefunction of benzene can be partitioned into tiles which show that the two electron spins
Yu Liu   +3 more
doaj   +1 more source

Invariant Kekulé structures in fullerene graphs

open access: greenElectron. Notes Discret. Math., 2013
Mathieu Bogaerts   +2 more
openalex   +3 more sources

Observation of nonlinear disclination states

open access: yesLight: Science & Applications, 2023
Introduction of controllable deformations into periodic materials that lead to disclinations in their structure opens novel routes for construction of higher-order topological insulators hosting topological states at disclinations.
Boquan Ren   +12 more
doaj   +1 more source

Predictive Registry Optimization of Molecular Adsorbates on Solid Surfaces

open access: yesAngewandte Chemie, EarlyView.
Local C–H “spikes” from a π‐conjugated backbone lock into graphene “pockets”. A geometric registry score turns images obtained by scanning tunneling microscopy at the solid/liquid interface into atomic‐scale adsorption models, enabling assignment of surface atropisomers in large π‐conjugated molecules.
David A. Hofmeister   +7 more
wiley   +2 more sources

Home - About - Disclaimer - Privacy