Results 61 to 70 of about 32,713 (278)
Concurrence in the two dimensional XXZ- and transverse field Ising-models
, 2003 Numerical results for the concurrence and bounds on the localizable entanglement are obtained for the square lattice spin-1/2 XXZ-model and the transverse field Ising-model at low temperatures using quantum Monte Carlo.Comment: 9 pages, 4 figures ...
Arnesen +20 more
core +2 more sources
Advanced Functional Materials, EarlyView.Sub‐monolayer titania grafted onto mesoporous silica enables solvent‐free photocatalytic upgrading of furfural and cyclopentanone into jet fuel precursors. Advanced spectroscopic methods reveal tunable surface speciation, acidity, and bandgaps, enhancing catalytic efficiency.
Mark A. Isaacs +12 more
wiley +1 more source
The critical Z-invariant Ising model via dimers: the periodic case
, 2008 We study a large class of critical two-dimensional Ising models namely critical Z-invariant Ising models on periodic graphs, example of which are the classical square, triangular and honeycomb lattice at the critical temperature.
Boutillier, Cédric +1 more
core +2 more sources
On generalized cluster algorithms for frustrated spin models [PDF]
, 1993 Standard Monte Carlo cluster algorithms have proven to be very effective for many different spin models, however they fail for frustrated spin systems.
A.D. Sokal +26 more
core +2 more sources
Advanced Functional Materials, EarlyView.Designing stable Ru nanoparticle catalyst remains a critical challenge in electrochemical applications. Here, a strategy is presented to stabilize Ru catalysts by leveraging Ce‐doped ZrO2 supports (ZrCeO2‐x), which enhance catalyst durability and activity through electronic metal‐support interactions and stabilized oxygen vacancies.
Mansu Kim +9 more
wiley +1 more source
Percolation and number of phases in the 2D Ising model
, 1999 We reconsider the percolation approach of Russo, Aizenman and Higuchi for showing that there exist only two phases in the Ising model on the square lattice.
Aizenman M. +7 more
core +6 more sources
Advanced Functional Materials, EarlyView.Transient absorption measurements of doped conjugated polymer films show that small dopant ions create both free and Coulomb‐trapped polarons regardless of polymer morphology, but large dodecaborane‐based dopant ions create only free polarons even though the large ions cause the films to be more disordered.
Eric C. Wu +10 more
wiley +1 more source
Free energy and metastable states in the square-lattice $J_1$-$J_2$ Ising model
SciPost PhysicsFree energy as a function of polarization is calculated for the square-lattice $J_1$-$J_2$ Ising model for $J_2 < |J_1|/2$ using the random local field approximation (RLFA) and Monte Carlo (MC) simulations. Within RLFA, it reveals a metastable state with
Veniamin A. Abalmasov
doaj +1 more source
Emergent 1/3 magnetization plateaus in pyroxene CoGeO_{3}
Physical Review Research, 2021 Despite the absence of an apparent triangular pattern in the crystal structure, we observe unusually well-pronounced 1/3 magnetization plateaus in the quasi-one-dimensional Ising spin chain compound CoGeO_{3} which belongs to the class of pyroxene ...
H. Guo +8 more
doaj +1 more source
Projective cluster-additive transformation for quantum lattice models
SciPost Physics, 2023 We construct a projection-based cluster-additive transformation that block-diagonalizes wide classes of lattice Hamiltonians $\mathcal{H}=\mathcal{H}_0 +V$.
Max Hörmann, Kai P. Schmidt
doaj +1 more source