中文
相关论文

相关论文: Magnetization in the zig-zag layered Ising model a…

200 篇论文

We investigate the nonequilibrium dynamics of the magnetization in an Ising chain subjected to a slowly rotating transverse field. The magnetization oscillations are found to be explained by the contributions from different particle…

强关联电子 · 物理学 2024-11-12 Xiao Wang , Masaki Oshikawa , Márton Kormos , Jianda Wu

A one dimensional kinetic Ising model at a finite temperature on a semi-infinite lattice with time varying boundary spins is considered. Exact expressions for the expectation values of the spin at each site are obtained, in terms of the…

统计力学 · 物理学 2012-02-06 Amir Aghamohammadi , Cina Aghamohammadi , Mohammad Khorrami

We give a rigorous proof of the existence of spontaneous magnetization at finite temperature for the Ising spin model defined on the Sierpinski carpet fractal. The theorem is inspired by the classical Peierls argument for the two…

统计力学 · 物理学 2009-11-07 A. Vezzani

To understand the collinear-magnetism-driven ferroelectricity in multiferroic Ca3CoMnO6 compound, we have established an elastic diatomic Ising spin-chain model with axial-next-nearest-neighbor interaction to describe its magnetoelectric…

统计力学 · 物理学 2016-03-23 Yan Qi , Qi Yang , Nai-sen Yu , An Du

Magnetic properties of two and three-dimensional clusters of quantum dots are studied with exact diagonalization of a generalized Hubbard model. We study the weak coupling limit, where the electrons interact only within a quantum dot and…

强关联电子 · 物理学 2009-11-13 J. -P. Nikkarila , M. Koskinen , M. Manninen

Magnetization plateaus in quantum spin systems emerges in two-dimensional frustrated systems such as kagome lattice. The spin-1/2 antiferromagnetic Heisenberg model on square-kagome lattice is also appropriate for the study of magnetization…

强关联电子 · 物理学 2018-03-16 Katsuhiro Morita , Takami Tohyama

Magnetic diffraction patterns which exhibit more than one discrete set of symmetry related peaks have been explained by the simultaneous coexistence of more than one magnetic polarisation and propagation vector, k, in the scattering…

其他凝聚态物理 · 物理学 2007-05-23 E. Blackburn , N. Bernhoeft

Spin-1/2 Heisenberg model on kagome lattice is a typical frustrated quantum spin system. A basic structure of kagome lattice is also present in kagome-strip lattice in one dimension, where a similar type of frustration is expected. We thus…

强关联电子 · 物理学 2018-01-19 K. Morita , T. Sugimoto , S. Sota , T. Tohyama

The identification of microscopic models describing the low-energy properties of correlated materials has been a central goal of spectroscopic measurements. We demonstrate how 2D non-linear spectroscopy can be used to distinguish effective…

强关联电子 · 物理学 2023-12-12 GiBaik Sim , Frank Pollmann , Johannes Knolle

The one dimensional (1D) spin-1/2 Heisenberg-Ising model, a prototype quantum many-body system, has been intensively studied for many years. In this review, after a short introduction on some basic concepts of group theory for the…

强关联电子 · 物理学 2023-01-18 Jiahao Yang , Xiao Wang , Jianda Wu

Magnetic structures and spin excitations are studied across the phase diagram of the geometrically frustrated S = 3/2 quantum antiferromagnet Cs2CoBr4 in magnetic fields applied along the magnetic easy axis, using neutron diffraction,…

Magnetic induction dependence of the dispersion of longitudinal magnetoplasmon in a two-dimensional electron gas with finite layer thickness under a static uniform magnetic field normal to the layer plane is calculated using the…

介观与纳米尺度物理 · 物理学 2015-06-16 T. Uchida , N. Hiraiwa , K. Yamada , M. Fujita , T. Toyoda

Two dimensional square lattice general model of the magnetic dot array is introduced. In this model the intradot self-energy is predicted via the neural network and interdot magnetostatic coupling is approximated by the collection of…

无序系统与神经网络 · 物理学 2009-11-07 Denis Horvath , Martin Gmitra , Ivo Vavra

The magnetization process of the S=1/2 antiferromagnetic spin ladder at T=0 is studied by the exact diagonalization of finite clusters and size scaling analyses. It is found that a magnetization plateau appears at half the saturation value…

强关联电子 · 物理学 2009-10-31 Nobuhisa Okazaki , Junji Miyoshi , Toru Sakai

The quantum oscillatory magnetization M of a two-dimensional electron system in a magnetic field B is found to provide quantitative information on both the Rashba- and Dresselhaus spin-orbit interaction (SOI). This is shown by first…

介观与纳米尺度物理 · 物理学 2013-11-26 Marc A. Wilde , Dirk Grundler

We modified the recently proposed multicanonical MC algorithm for the case of a magnetic field driven order--order phase transition. We test this {\it multimagnetic} Monte Carlo algorithm for the D=2 Ising model at $\beta=0.5$ and simulate…

高能物理 - 格点 · 物理学 2007-05-23 U. Hansmann , B. A. Berg , T. Neuhaus

The Kondo lattice model of spin-1/2 local moments coupled to the conduction electrons at half-filling is studied for its orbital response to magnetic field on bipartite lattices. Through an effective charge dynamics, in a canonical…

强关联电子 · 物理学 2017-08-17 Panch Ram , Brijesh Kumar

We consider the Ising model on the square lattice with biaxially correlated random ferromagnetic couplings, the critical point of which is fixed by self-duality. The disorder represents a relevant perturbation according to the extended…

统计力学 · 物理学 2007-05-23 F. A. Bagamery , L. Turban , F. Igloi

The bulk and boundary magnetizations are calculated for the critical Ising model on a randomly triangulated disk in the presence of a boundary magnetic field h. In the continuum limit this model corresponds to a c = 1/2 conformal field…

高能物理 - 理论 · 物理学 2008-11-26 Sean M. Carroll , Miguel E. Ortiz , Washington Taylor

We theoretically study magnetic properties of two-component cold fermions in half-filled multilayer Lieb optical lattices, i.e., two, three, and several layers, using the dynamical mean-field theory. We clarify that the magnetic properties…

量子气体 · 物理学 2015-08-03 Kazuto Noda , Kensuke Inaba , Makoto Yamashita