Results 131 to 140 of about 56,836 (316)

Two Information Entropies of Square-Lattice $\pm {J}$ Ising Models

, 2015
Two information entropies, $S_{IB}$ based on the local bonding energy configurations and $S_{IS}$ based on the local spin configurations, are applied in the square-lattice $\pm {J}$ Ising systems with Monte Carlo simulations. With $S_{IB}$ and $S_{IS}$, the spin glass states can be distinguished from paramagnetic states clearly. The results reveal that
Xu, Xiao, Mao, Zhongquan, Chen, Xi
openaire   +2 more sources

A Multifunctional Potent Lewis Acid for In Situ Formation of Poly‐Dioxolane Electrolytes Toward High‐Performance Quasi‐Solid State Lithium Metal Batteries

Advanced Science, EarlyView.
Conventional polymer electrolytes based on poly‐dioxolane (PDOL) suffer from low ion mobility and unstable interfaces. Here, AlCl3‐initiated in situ polymerized gel PDOL electrolytes (AGPE) form a facile Li+ conduction path and hybrid SEI layers, thus enabling high Li+ conductivity and uniform Li deposition.
Jaehyeong Yu, Seochan Hong, Minseon Park, Minguk Kwak, Subin Kim, Jaehyun Heo, Won Bae Kim   +6 more
wiley   +1 more source

Complete high-precision entropic sampling

, 2011
Monte Carlo simulations using entropic sampling to estimate the number of configurations of a given energy are a valuable alternative to traditional methods. We introduce {\it tomographic} entropic sampling, a scheme which uses multiple studies, starting
A. G. Cunha-Netto, M. E. Fisher, M. N. Barber, P. M. C. de Oliveira, Ronald Dickman   +4 more
core   +1 more source

Anisotropic scaling of the two-dimensional Ising model I: the torus

SciPost Physics, 2019
We present detailed calculations for the partition function and the free energy of the finite two-dimensional square lattice Ising model with periodic and antiperiodic boundary conditions, variable aspect ratio, and anisotropic couplings, as well as ...
Hendrik Hobrecht, Alfred Hucht
doaj   +1 more source

Spectroscopic Evidence of Edge‐Localized States in an Antiferromagnet Topological Insulator NdBi

Advanced Science, EarlyView.
Using spin‐polarized scanning tunneling microscopy (STM) in conjunction with quasiparticle interference, we successfully identify distinct signatures of the ferromagnetic and antiferromagnetic terminations in NdBi, a rare‐earth monopnictide exhibiting non‐trivial topology and magnetism. We demonstrate that step edges on ferromagnetic surfaces host well‐
Avior Almoalem, Rebecca Chan, Brinda Kuthanazhi, Juan Schmidt, Jose A. Moreno, Hermann Suderow, Paul Canfield, Taylor L. Hughes, Vidya Madhavan   +8 more
wiley   +1 more source

Cluster variation method and disorder varieties of two-dimensional Ising-like models

, 2000
I show that the cluster variation method, long used as a powerful hierarchy of approximations for discrete (Ising-like) two-dimensional lattice models, yields exact results on the disorder varieties which appear when competitive interactions are put into
A. G. Schlijper, A. G. Schlijper, A. Georges, Alessandro Pelizzola, C. Buzano, C. Domb, E. N. M. Cirillo, G. An, H. A. Kramers, H. J. Brascamp, H. Meyer, I. G. Enting, I. Peschel, I. Peschel, J. L. Morán-López, J. M. Sanchez, J. Stephenson, J. Stephenson, M. Kurata, M. T. Jaekel, P. Ruján, P. Ruján, P. Ruján, R. J. Baxter, R. J. Baxter, R. Kikuchi, R. Kikuchi, S. J. Singer, T. Morita, T. Morita   +29 more
core   +1 more source

Unfrustrating the t-J Model: Exact d-wave BCS Superconductivity in the t'-J_z-V Model

SciPost Physics, 2019
The t-J model is believed to be a minimal model that may be capable of describing the low-energy physics of the cuprate superconductors. However, although the t-J model is simple in appearance, obtaining a detailed understanding of its phase diagram has ...
Kevin Slagle
doaj   +1 more source

Tricritical Properties of Antiferromagnetic Ising Model on the Square Lattice

, 2015
The Ising square lattice model with nearest-neighbor (nn) interactions ($J_1$) is one of the few exactly solvable models [1]. Adding next-neareast- neighbor (nnn) interactions ($J_2$) or a magnetic field (or both) leads to the non solvability of the model and only some approximate solutions are possible. In this brief report we will review some results
Bobák, A., Borovský, M., Lučivjanský, T., Žukovič, M.   +3 more
openaire   +2 more sources

Emerging of Anomalous Higher‐Order Topological Phases in Altermagnet/Topological Insulator Heterostructure by Floquet Engineering

Advanced Science, EarlyView.
We combine altermagnet with topological insulators and subject the structure to Floquet driving. This breaks time‐reversal symmetry and creates a new type of higher‐order topological insulator. Its key feature is the emergence of programmable “0/π‐corner modes” that can be controlled by magnetic field direction, offering a novel dynamic platform for ...
Donghao Wang, Arnob Kumar Ghosh, Yongchun Tao, Fusheng Ma, Cheng Song   +4 more
wiley   +1 more source

Finite Correlation Length Scaling in Lorentz-Invariant Gapless iPEPS Wave Functions

Physical Review X, 2018
It is an open question how well tensor network states in the form of an infinite projected entangled-pair states (iPEPS) tensor network can approximate gapless quantum states of matter. Here we address this issue for two different physical scenarios: (i) 
Michael Rader, Andreas M. Läuchli
doaj   +1 more source