Results 81 to 90 of about 651,102 (346)
Giant Berry‐phase‐Driven X‐Ray Beam Translations in Strain‐Engineered Semiconductor Crystals
Advanced Materials, EarlyView.Due to the Berry‐phase effect, X‐rays propagating in deformed crystals undergo large translations, interesting for X‐ray optics applications. Here, the lattice expansion observed upon H irradiation of dilute‐nitride semiconductors is exploited to engineer the deformation landscape of selectively hydrogenated GaAsN epilayers.
Marco Felici +9 more
wiley +1 more source
QED as a many-body theory of worldlines: II. All-order S-matrix formalism [PDF]
, 2022 Xabier Feal +2 more
openalex +1 more source
Spectral Tuning of Hyperbolic Shear Polaritons in Monoclinic Gallium Oxide via Isotopic Substitution
Advanced Materials, EarlyView.Spectral tuning of highly directional hyperbolic shear polaritons is realized via isotopic substitution of 16O to 18O in monoclinic β$\beta$‐phase gallium oxide. A red‐shift of almost 40 cm−1 is experimentally demonstrated with near‐field imaging, corroborated by the permittivity change extracted from far‐field experiments and density functional theory.
Giulia Carini +28 more
wiley +1 more source
Musicologica Austriaca, 2015 In the 1870s, both August Wilhelm Ambros and Ferdinand Peter Graf Laurencin worked as reviewers of music in Vienna: Ambros had regularly been writing for the Wiener Zeitung since 1872, and Laurencin was, among other things, a Viennese correspondent for ...
Markéta Štědronská
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Revista Letras, 1999 O texto pretende chegar a uma conceituação adequada de "semântica formal", esclarecendo a noção de "significado" suposta e suas relações com outras áreas (e/ou abordagens) do estudo da linguagem humana. A partir da noção de "verdade como correspondência" e da noção de "modelo de interpretação", procura-se esboçar a proposta de uma teoria semântica ...
openaire +4 more sources
The magnetic formalism; new results
, 2009 We review recent results on the magnetic pseudo-differential calculus both in symbolic and in $C^*$-algebraic form. We also indicate some applications to spectral analysis of pseudo-differential operators with variable magnetic ...
Iftimie, Viorel +2 more
core +2 more sources
Electron Channeling Contrast Imaging of Ferroelastic Domains
Advanced Materials, EarlyView.A simple scanning electron microscopy technique, electron channeling contrast imaging, unveils nanoscale ferroelastic domains and their coupling to functional properties in oxide heterostructures. The work demonstrates high‐resolution mapping of both surface and buried domains, broadening the experimental toolbox for ferroic and quantum oxide systems ...
Wei Peng +13 more
wiley +1 more source
New Formalism for Numerical Relativity
, 1995 We present a new formulation of the Einstein equations that casts them in an explicitly first order, flux-conservative, hyperbolic form. We show that this now can be done for a wide class of time slicing conditions, including maximal slicing, making it ...
A. E. Fischer +18 more
core +1 more source
Handed Magnon Propagation in Easy‐Axis Antiferromagnetic α‐Fe2O3
Advanced Materials, EarlyView.Coherent excitation and detection of handed magnons are achieved in the easy‐axis antiferromagnet α‐Fe2O3. An external magnetic field lifts the degeneracy between left‐ and right‐handed magnons without affecting their propagation velocity. The Dzyaloshinskii–Moriya interaction and anisotropy modulate their amplitude and damping, enabling intrinsic ...
Chang Xu +3 more
wiley +1 more source
El historiador y la Novela: De la complicidad mimética a la mediación textual.
Historia Crítica, 2004 The article suggests the need for a shift in the historian's traditional outlook on literature, according to which the latter is a provider of «useful knowledge and information.» This point of view is based on the conception of the literary work—the ...
Claudia Montilla V.
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