Results 11 to 20 of about 4,930 (43)

Multi-parametric sensitivity analysis of the band structure for tetrachiral inertial metamaterials [PDF]

open access: yes, 2017
Tetrachiral materials are characterized by a cellular microstructure made by a periodic pattern of stiff rings and flexible ligaments. Their mechanical behaviour can be described by a planar lattice of rigid massive bodies and elastic massless beams. The
Bacigalupo, Andrea, Lepidi, Marco
core  

Microscopic theory of refractive index applied to metamaterials: Effective current response tensor corresponding to standard relation $n^2 = \varepsilon_{\mathrm{eff}} \mu_{\mathrm{eff}}$

open access: yes, 2018
In this article, we first derive the wavevector- and frequency-dependent, microscopic current response tensor which corresponds to the "macroscopic" ansatz $\vec D = \varepsilon_0 \varepsilon_{\mathrm{eff}} \vec E$ and $\vec B = \mu_0 \mu_{\mathrm{eff}} \
Schober, G. A. H., Starke, R.
core   +1 more source

Vector magnetometry using silicon vacancies in 4H-SiC at ambient conditions

open access: yes, 2016
Point defects in solids promise precise measurements of various quantities. Especially magnetic field sensing using the spin of point defects has been of great interest recently.
Janzén, Erik   +8 more
core   +1 more source

Casimir effect for lattice fermions

open access: yes, 2020
We propose a definition of the Casimir energy for free lattice fermions. From this definition, we study the Casimir effects for the massless or massive naive fermion, Wilson fermion, and (M\"obius) domain-wall fermion in $1+1$ dimensional spacetime with ...
Ishikawa, Tsutomu   +2 more
core   +1 more source

Covariant Response Theory and the Boost Transform of the Dielectric Tensor

open access: yes, 2017
After a short critique of the Minkowski formulae for the electromagnetic constitutive laws in moving media, we argue that in actual fact the problem of Lorentz-covariant electromagnetic response theory is automatically solved within the framework of ...
Schober, G. A. H., Starke, R.
core   +1 more source

Stacking dependence of carrier transport properties in multilayered black phosphorous

open access: yes, 2015
We present the effect of different stacking orders on carrier transport properties of multi-layer black phosphorous. We consider three different stacking orders AAA, ABA and ACA, with increasing number of layers (from 2 to 6 layers).
Audiffred, M.   +3 more
core   +1 more source

Higher-Order Topology, Monopole Nodal Lines, and the Origin of Large Fermi Arcs in Transition Metal Dichalcogenides XTe$_2$ (X=Mo,W)

open access: yes, 2019
In recent years, transition metal dichalcogenides (TMDs) have garnered great interest as topological materials -- monolayers of centrosymmetric $\beta$-phase TMDs have been identified as 2D topological insulators (TIs), and bulk crystals of ...
Bernevig, B. Andrei   +4 more
core   +1 more source

Vibrational properties of graphene fluoride and graphane

open access: yes, 2010
The vibrational properties of graphene fluoride and graphane are studied using ab initio calculations. We find that both sp3 bonded derivatives of graphene have different phonon dispersion relations and phonon density of states as expected from the ...
Hernández-Nieves, A. D.   +4 more
core   +1 more source

The Origins of Computational Mechanics: A Brief Intellectual History and Several Clarifications [PDF]

open access: yes, 2017
The principle goal of computational mechanics is to define pattern and structure so that the organization of complex systems can be detected and quantified.
Crutchfield, James P.
core   +1 more source

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