Results 81 to 90 of about 55,351 (274)
Advanced Functional Materials, EarlyView.EuSc₂Te₄, an antiferromagnetic semiconductor, exhibits a nonlinear Hall effect (NLHE) characterized by quadratic current–voltage behavior. Combined experimental and theoretical studies reveal that this NLHE is linked to its antiferromagnetism and involves contributions from the quantum metric.
Seng Huat Lee +15 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
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
Renormalization group maps for Ising models in lattice gas variables
, 2009 Real space renormalization group maps, e.g., the majority rule transformation, map Ising type models to Ising type models on a coarser lattice. We show that each coefficient of the renormalized Hamiltonian in the lattice gas variables depends on only a ...
A. Brandt +17 more
core +2 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
Advanced Functional Materials, EarlyView.Garnet‐like luminescence upon Ce3+‐activation is found in the first six representatives Li9RESi4N4O8 (RE = Y, La, Gd, Dy, Yb, Lu) of the substance class of lithium rare‐earth oxonitridolithosilicates, which also show a novel structure type. High‐temperature solid‐state synthesis yielded crystalline samples for single‐crystal X‐ray diffraction‐based ...
Kilian M. Rießbeck +5 more
wiley +1 more source
Spin Transition of Iron in Deep‐Mantle Ferromagnesite
Geophysical Monograph Series, Page 115-125., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Jiachao Liu, Suyu Fu, Jung‐Fu Lin
wiley +1 more source
Anatomy of a Spin: The Information-Theoretic Structure of Classical Spin Systems
Entropy, 2017 Collective organization in matter plays a significant role in its expressed physical properties. Typically, it is detected via an order parameter, appropriately defined for each given system’s observed emergent patterns.
Vikram S. Vijayaraghavan +2 more
doaj +1 more source
Generalized Transformation for Decorated Spin Models
, 2009 The paper discusses the transformation of decorated Ising models into an effective \textit{undecorated} spin models, using the most general Hamiltonian for interacting Ising models including a long range and high order interactions.
Abramowitz +41 more
core +1 more source