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We propose a novel class of temperature-tunable semiconductor metamaterials that exhibit negative refraction in the terahertz spectral range. These metamaterials are based on doped semiconductor superlattices with ultrathin barriers of…

介观与纳米尺度物理 · 物理学 2015-08-18 Kirill L. Koshelev , Andrey A. Bogdanov

Understand the nature of liquid structure and its evolution under different conditions is a major challenge in condensed physics and materials science. Here, we report a pressure-induced structure change spanning a wide pressure range in…

材料科学 · 物理学 2025-01-28 X. Z. Yan , Y. M. Chen , Hua Y. Geng , Y. F. Wang , Y. Sun , L. L. Zhang , H. Wang , Y. L. Xu

Relying on our theoretical approach for the superconducting critical state problem in 3D magnetic field configurations, we present an exhaustive analysis of the electrodynamic response for the so-called longitudinal transport problem in the…

超导电性 · 物理学 2015-05-30 H. S. Ruiz , A. Badía-Majós , C. López

Hyperbolic metamaterials show exceptional optical properties, such as near-perfect broadband absorption, due to their geometrically-engineered optical anisotropy. Many of their proposed applications, such as thermophotovoltaics or radiative…

材料科学 · 物理学 2023-02-10 Jose L. Ocana-Pujol , Lea Forster , Ralph Spolenak , Henning Galinski

In heterogeneous solids such as rocks and concrete, the speed of sound diminishes with the strain amplitude of a dynamic loading (softening). This decrease known as "slow dynamics" occurs at time scales larger than the period of the…

经典物理 · 物理学 2020-12-09 H Berjamin , N Favrie , B Lombard , G Chiavassa

Very thin elastic sheets, even at zero temperature, exhibit nonlinear elastic response by virtue of their dominant bending modes. Their behavior is even richer at finite temperature. Here we use molecular dynamics (MD) to study the…

软凝聚态物质 · 物理学 2022-06-28 Zhitao Chen , Duanduan Wan , Mark J. Bowick

The Poynting effect generically manifests itself as the extension of the material in the direction perpendicular to an applied shear deformation (torsion) and is a material parameter hard to design. Unlike isotropic solids, in designed…

软凝聚态物质 · 物理学 2022-07-12 Aref Ghorbani , David Dykstra , Corentin Coulais , Daniel Bonn , Erik van der Linden , Mehdi Habibi

We study the transient response of a colloidal bead which is released from different heights and allowed to relax in the potential well of an optical trap. Depending on the initial potential energy, the system's time evolution shows…

软凝聚态物质 · 物理学 2011-06-10 Manas Khan , A. K. Sood

Changing the microstructure properties of a space-time metamaterial while a wave is propagating through it, in general requires addition or removal of energy, which can be of exponential form depending on the type of modulation. This limits…

经典物理 · 物理学 2022-08-10 Kshiteej J. Deshmukh , Graeme W. Milton

Thermodynamic equations for a solid and a solid continuum under stress are derived on the basis of a multicomponent mean field Markov process for thermofluctuation kinetics of microcracks. The resulting continuum is viscous elastoplastic…

数学物理 · 物理学 2014-04-03 V. M. Gertsik , A. L. Petrosyan

The topological theory of phase transitions was proposed on the basis of different arguments, the most important of which are: a direct evidence of the relation between topology and phase transitions for some exactly solvable models; an…

统计力学 · 物理学 2018-02-28 Matteo Gori , Roberto Franzosi , Marco Pettini

A diffuse-interface model for microstructure with an arbitrary number of components and phases was developed from basic thermodynamic and kinetic principles and formalized within a variational framework. The model includes a composition…

材料科学 · 物理学 2011-07-28 Daniel A. Cogswell , W. Craig Carter

Pressure-induced superconductivity and structural phase transitions in phosphorous (P) are studied by resistivity measurements under pressures up to 170 GPa and fully $ab-initio$ crystal structure and superconductivity calculations up to…

A two-dimensional lattice gas model is proposed. The ground state of this model with a fixed density is neither periodic nor quasi-periodic. It also depends on system size in an irregular manner. On the other hand, it is ordered in the…

统计力学 · 物理学 2015-05-19 Shin-ichi Sasa

Emerging multiphysics metamaterials offer a distinct possibility for regulating complex physical processes. However, two severe constraints still lower their functionality and tunability. First, multiphysics functionality is fixed once…

应用物理 · 物理学 2023-02-02 Min Lei , Liujun Xu , Jiping Huang

The simulation of the transition sequence of superheated Type I superconducting granules (SSG) in disordered suspensions when an external magnetic field is slowly increased from zero has been studied. Simulation takes into account…

经典物理 · 物理学 2009-11-07 A. Penaranda , C. E. Auguet , L. Ramirez-Piscina

We consider the vestigial phase with broken time-reversal symmetry above the superconducting transition temperature of a two-component superconductor in two spatial dimensions. We show that, in contrast to 3D, a vestigial phase is in…

超导电性 · 物理学 2024-04-29 P. T. How , S. K. Yip

Based on quasi-stationary distribution ideas, a general finite size scaling theory is proposed for discontinuous nonequilibrium phase transitions into absorbing states. Analogously to the equilibrium case, we show that quantities such as,…

统计力学 · 物理学 2015-12-23 M. M. de Oliveira , M. G. E. da Luz , C. E. Fiore

Metastable phases present a promising route to expand the functionality of complex materials. Of particular interest are light-induced metastable phases that are inaccessible under equilibrium conditions, as they often host new, emergent…

In this article, we present a description of the behaviour of shock-compressed solid materials following the Geometrical Shock Dynamics (GSD) theory. GSD has been successfully applied to various gas dynamics problems, and here we have…

材料科学 · 物理学 2025-02-06 R. K. Anand