Results 71 to 80 of about 158,681 (246)
Diverse Landscape of Tunable Magnetic, Topological, and Ferroelectric States in 2D Ti3Se3Te2
Advanced Science, EarlyView.Ti3Se3Te2 emerges as a multifunctional 2D van der Waals platform. The monolayer is a dynamically stable ferromagnetic quantum anomalous Hall insulator. In bilayers, two stacking configurations yield distinct phases: AA‐stacking hosts an altermagnetic quantum spin Hall insulator, while AA′‐stacking exhibits three‐state in‐plane ferroelectricity ...
Jiangtao Yu +5 more
wiley +1 more source
Hamiltonian paths and hamiltonian connectivity in graphs
Discrete Mathematics, 1993 A degree and neighborhood type condition on independent triples of vertices of a graph \(G\) that implies \(G\) is hamiltonian-connected is given. In particular, the following is proved. If \(G\) is a 3-connected graph of order \(n\) such that \(d(u) + d(v) + d(w)-| N(u) \cap N(v) \cap N(w) | \geq n+1,\) then \(G\) is hamiltonian-connected.
openaire +2 more sources
Efficient Screening of Organic Singlet Fission Molecules Using Graph Neural Networks
Advanced Science, EarlyView.A high‐throughput screening framework based on graph neural networks (GNNs) and multi‐level validation facilitates the identification of singlet fission (SF) candidates. By efficiently predicting excitation energies across 20 million molecules, and integrating TDDFT calculations, synthetic accessibility assessments, and GW+BSE calculations, this ...
Li Fu +5 more
wiley +1 more source
Euclidean tours in fairy chess [PDF]
Notes on Number Theory and Discrete MathematicsThe present paper aims to generalize the Knight's tour problem for k-dimensional grids of the form {0,1}ᵏ by considering other fairy chess leapers. Accordingly, we constructively show the existence of closed tours in 2×2×...×2 (k times) chessboards ...
Gabriele Di Pietro, Marco Ripà
doaj +1 more source
Hamiltonian paths in L-shaped grid graphs
Theoretical Computer Science, 2016 28 pages, 31 figures, and 20 ...
Keshavarz-Kohjerdi, Fatemeh +1 more
openaire +3 more sources
Superatom Distortion Induces Triferroicity and Spin Splitting in Two‐Dimensional Antiferromagnets
Advanced Science, EarlyView.The incorporation of superatoms into a 2D square lattice induces symmetry breaking, thereby enabling concurrent coupling among magnetism, ferroelectricity, and ferroelasticity. This strategy achieves triferroic behavior—characterized by spin‐split antiferromagnetic ground states—and offers a viable pathway toward energy‐efficient spintronic devices ...
Zhen Gao +6 more
wiley +1 more source
Advances in Mechanical Engineering, 2019 We propose a new local path planning approach based on optimization methods with probabilistic completeness in this article. This approach adds a linear constraint to the original covariant Hamiltonian optimization for motion planning problem with a new ...
Bo You +4 more
doaj +1 more source
Advanced Science, EarlyView.Interlayer sliding in the RuO2Zn2F2 bilayer induces ferroelectricity and enables reversible valley polarization switching. The electric dipole and valley‐resolved band edges are intimately coupled, revealing sliding ferroelectricity as a powerful mechanism for electrical control of valley degrees of freedom in 2D materials.
Djamel Bezzerga +3 more
wiley +1 more source
The Hamiltonian index of a graph and its branch-bonds [PDF]
, 2001 Let $G$ be an undirected and loopless finite graph that is not a path. The minimum $m$ such that the iterated line graph $L^m(G)$ is hamiltonian is called the hamiltonian index of $G,$ denoted by $h(G).$ A reduction method to determine the hamiltonian ...
Broersma, Haitze J. +4 more
core +1 more source
Advanced Science, EarlyView.How can Sn‐based anodes achieve high capacity and long‐life cycling? This work unlocks the potential anode structure by confining Sn in the A layer of MAX phase with Ti6C octahedra as outer immobilization and Fe as inner anchors. The introduction of Fe dramatically strengthens the Ti–Sn bond to enhance structural integrity, modulate interfacial ...
Yu‐ang Lei +13 more
wiley +1 more source