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相关论文: Enhanced Electronic Transport in Disordered Hyperu…

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It has been shown numerically that systems of particles interacting with "stealthy" bounded, long-ranged pair potentials (similar to Friedel oscillations) have classical ground states that are, counterintuitively, disordered, hyperuniform…

统计力学 · 物理学 2015-06-03 S. Torquato , G. Zhang , F. H. Stillinger

Ultracold atoms in optical lattices offer a unique platform for investigating disorder-driven phenomena. While static disordered site potentials have been explored in a number of optical lattice experiments, a more general control over…

量子气体 · 物理学 2017-09-28 Fangzhao Alex An , Eric J. Meier , Bryce Gadway

The conductance of a disordered finite-size electron system is calculated by reducing the initial dynamic problem of arbitrary dimensionality to strictly one-dimensional problems for one-particle mode propagators. The metallic ground state…

无序系统与神经网络 · 物理学 2007-05-23 Yu. V. Tarasov

We consider a disordered two-dimensional electronic system in the limit of high magnetic field at the metal-insulator transition. Density of states close to the Fermi level acquires a divergent correction to the lowest order in…

凝聚态物理 · 物理学 2009-10-28 Igor F. Herbut , Zlatko Tesanovic

We use particle dynamics simulations to probe the correlations between noise and dynamics in a variety of disordered systems, including superconducting vortices, 2D electron liquid crystals, colloids, domain walls, and granular media. The…

超导电性 · 物理学 2009-11-10 C. J. Olson Reichhardt , C. Reichhardt

Localization due to disorder has been one of the most intriguing theoretical concepts evolved in condensed matter. Here, we expand the theory of localization by considering two types of disorder at the same time, namely the original…

无序系统与神经网络 · 物理学 2023-03-03 Mouyang Cheng , Haoxiang Chen , Ji Chen

The low-energy density of states (DOS) of disordered 2D d-wave superconductors is extremely sensitive to details of both the disorder model and the electronic band structure. Using diagrammatic methods and numerical solutions of the…

凝聚态物理 · 物理学 2009-11-07 A. G. Yashenkin , W. A. Atkinson , I. V. Gornyi , P. J. Hirschfeld , D. V. Khveshchenko

Many of the most exciting materials discoveries in fundamental condensed matter physics are made in systems hosting some degree of intrinsic disorder. While disorder has historically been regarded as something to be avoided in materials…

强关联电子 · 物理学 2024-06-19 A. R. Mazza , J. Yan , S. Middey , J. S. Gardner , A. -H. Chen , M. Brahlek , T. Z. Ward

We study amorphous systems with completely random sites and find that, through constructing and exploring a concrete model Hamiltonian, such a system can host an exotic phase of topological amorphous metal in three dimensions. In contrast…

介观与纳米尺度物理 · 物理学 2019-08-21 Yan-Bin Yang , Tao Qin , Dong-Ling Deng , L. -M. Duan , Yong Xu

We study how the influence of structural correlations in disordered systems manifests itself in experimentally measurable magnitudes, focusing on dc conductance of semiconductor superlattices with general potential profiles. We show that…

凝聚态物理 · 物理学 2009-10-22 Enrique Diez , Angel Sanchez , Francisco Dominguez-Adame

Rigorous theories connecting physical properties of a heterogeneous material to its microstructure offer a promising avenue to guide the computational material design and optimization. We present here an efficient Fourier-space based…

材料科学 · 物理学 2024-12-13 Wenlong Shi , Yang Jiao , Salvatore Torquato

Silicon dioxide or silica, normally existing in various bulk crystalline and amorphous forms, is recently found to possess a two-dimensional structure. In this work, we use ab initio calculation and evolutionary algorithm to unveil three…

材料科学 · 物理学 2018-01-29 Zhibin Gao , Xiao Dong , Nianbei Li , Jie Ren

Torquato and Kim [Phys. Rev. X 11, 296 021002 (2021)] derived exact nonlocal strong-contrast expansions of the effective dynamic dielectric constant tensor that treat general three-dimensional (3D) two-phase composites, which are valid well…

光学 · 物理学 2023-12-27 Jaeuk Kim , Salvatore Torquato

Recent progress in two-dimensional superconductors with atomic-scale thicknesses is reviewed mainly from the experimental point of view. The superconducting systems treated here involve a variety of materials and forms: elemental-metal…

超导电性 · 物理学 2016-11-17 Takashi Uchihashi

Atomically thin group-VIB transition metal dichalcogenides (TMDs) have recently emerged as a new class of two-dimensional (2D) semiconductors with extraordinary properties including the direct band gap in the visible frequency range, the…

介观与纳米尺度物理 · 物理学 2015-12-08 Gui-Bin Liu , Di Xiao , Yugui Yao , Xiaodong Xu , Wang Yao

A finite electronic band gap is a standard filter in high-throughput screening of materials using density functional theory (DFT). However, because of the systematic underestimation of band gaps in standard DFT approximations, a number of…

材料科学 · 物理学 2021-09-15 Kristian Berland , Ole Martin Løvvik , Rasmus Tranås

Sub-dimensional localization, also known as directional localization, arises when 2d electrons are subject to a periodic potential and incommensurate magnetic field which cause them to become exponentially localized along one crystal axis,…

介观与纳米尺度物理 · 物理学 2024-10-30 Nisarga Paul , Philip J. D. Crowley

The uniform electron gas (UEG), a hypothetical system with finite homogenous electron density composed by an infinite number of electrons in a box of infinite volume, is the practical pillar of density-functional theory (DFT) and the…

化学物理 · 物理学 2022-04-05 Pierre-François Loos , Michael Seidl

The study of energy transport properties in heterogeneous materials has attracted scientific interest for more than a century, and it continues to offer fundamental and rich questions. One of the unanswered challenges is to extend Anderson…

Bismuth has been shown to be topological in its different allotropes and compounds, with one of the most notable examples being the Bi-Sb alloy, the first 3D topological insulator ever discovered. In this paper we explore two-dimensional…

无序系统与神经网络 · 物理学 2024-10-22 A. J. Uría-Álvarez , J. J. Palacios