Results 71 to 80 of about 153,226 (252)

Electrically Tunable Heliconical Smectic Superstructure in Polar Fluids

Advanced Materials, EarlyView.
Strong dipole–dipole interactions give rise to an emergent polar smectic phase with spontaneous chiral symmetry breaking. This resulting polar heliconical smectic superstructure enables novel functionalities in polar fluids, such as color modulation driven by electric field strength and frequency, as well as second‐harmonic generation amplification ...
Hiroya Nishikawa, Dennis Kwaria, Atsuko Nihonyanagi, Koki Sano, Hiroyuki Yoshida, Fumito Araoka   +5 more
wiley   +1 more source

Reversible Hydration Tuning of Polar Order and Large Nonlinear Optical Response in a 2D van der Waals Crystal, LiInP2S6

Advanced Materials, EarlyView.
Hydration‐induced symmetry breaking transforms layered LiInP2S6${\rm LiInP}_2{\rm S}_6$ from a nonpolar to a chiral‐polar phase, producing a giant enhancement of non‐resonant second‐harmonic generation. The reversible tuning of polar order through molecular intercalation establishes a strategy for dynamically controlling nonlinear optical ...
Jadupati Nag, Saugata Sarker, Michael J. Waters, Safdar Imam, Himirkanti Sarkar, Anthony Richardella, James M. Rondinelli, Mercouri G. Kanatzidis, Venkatraman Gopalan   +8 more
wiley   +1 more source

$(GL_k\times S_n)$-Modules of Multivariate Diagonal Harmonics

, 2020
This is the first in a series of papers in which we describe explicit structural properties of spaces of diagonal rectangular harmonic polynomials in $k$ sets of $n$ variables, both as $GL_k$-modules and $S_n$-modules, as well as some of there relations to areas such as Algebraic Combinatorics, Representation Theory, Algebraic Geometry, Knot Theory ...
openaire   +2 more sources

N° 207 : Le logement, des maux et des remèdes

, 2019
Sommaire Diagonal N°207 Dans une société qui à certains égards se fragilise et se complexifie, la question sociale du logement se pose avec d’autant plus d’acuité. L’explosion des prix et des loyers dans les grandes métropoles, la difficulté d’accès à un
Revue Diagonal
core  

Reconfigurable Ferroelectric‐Like Two‐Dimensional Electron Gas at Room Temperature

Advanced Materials, EarlyView.
We demonstrate the realization of a novel ferroelectric‐like two‐dimensional electron gas (2DEG) based on the epitaxial interface between SrO‐terminate SrTiO3 and ferroeletric KNb0.5Na0.5O3${\rm KNb}_{0.5}{\rm Na}_{0.5}{\rm O}_3$ thin films. We show nonvolatile control of the transport properties enabling spatially reconfigurable devices in which ...
Martando Rath, Yu Chen, Daniela Stornaiuolo, Aravind Raji, Alexandre Gloter, Antonio Cassinese, Andrea Rubano, Alessia Sambri, Domenico Paparo, Emiliano Di Gennaro, Jérôme Lecourt, Wilfrid Prellier, Francesco Rosa, Nicholas B. Brookes, Giacomo Ghiringhelli, Daniele Preziosi, Marco Salluzzo   +16 more
wiley   +1 more source

DIAGONAL TEMPERLEY–LIEB INVARIANTS AND HARMONICS

, 2005
In the context of the ring Q[x, y], of polynomials in 2 n variables x = x1,..., xn and y = y1,..., yn, we introduce the notion of diagonally quasisymmetric polynomials.
N. Bergeron, J.-C. Aval, F. Bergeron, Bergeron, N., Aval, Jean-Christophe, Bergeron, F.   +5 more
core  

Hydrophobic MFI‐Type Zeolites via Alkali‐Cation‐Induced Defect Healing: Implications for Adsorbent and Catalyst Design

Advanced Materials, EarlyView.
Sub‐stoichiometric amounts of Na+ or K+ enhance defect healing during Silicalite‐1 (MFI) and TS‐1 calcination by promoting Si–O–Si annealing and healing framework vacancies. The resulting defect‐free zeolites are more hydrophobic and show improved butanol/water separation and improved activity and selectivity in the epoxidation of 1‐hexene, offering a ...
Christos Kanteler, Pau Ferri, Francisco Javier Escobar‐Bedia, Álvaro Mayoral, Alejandro Vidal‐Moya, Richard Kendra, Chen Lei, Miguel Palomino, Fernando Rey, Lukáš Grajciar, Christopher James Heard, Pedro Serna, Mercedes Boronat, Cristina Martínez, Manuel Moliner   +14 more
wiley   +1 more source

Exact diagonalization of the $d-$dimensional confined quantum harmonic oscillator

, 2016
In the existing literature various numerical techniques have been developed to quantize the confined harmonic oscillator in higher dimensions. In obtaining the energy eigenvalues, such methods often involve indirect approaches such as searching for the roots of hypergeometric functions or numerically solving a differential equation.
Adegoke, Kunle, Olatinwo, Adenike, Otobrise, Henry, Akintujoye, Funmi, Tiamiyu, Afees   +4 more
openaire   +2 more sources

Semiclassical spectra and diagonal matrix elements by harmonic inversion of cross-correlated periodic orbit sums

Physical Review E, 1999
Semiclassical spectra weighted with products of diagonal matrix elements of operators A_{alpha}, i.e., g_{alpha alpha'}(E) = sum_n /(E-E_n) are obtained by harmonic inversion of a cross-correlation signal constructed of classical periodic orbits. The method provides highly resolved semiclassical spectra even in situations of nearly degenerate states ...
Main, J., Weibert, K., Mandelshtam, V. A., Wunner, G.   +3 more
openaire   +3 more sources

L'ensemble des anciens numéros sur étagère...

, 2019
La Revue Diagonal existe depuis 1973 et a produit 216 numéros en version papier. Nous vous proposons ici les 31 derniers numéros parus et l'intégralité des numéros publiés seront progressivement mis en ligne. Pour tout renseignement, n'hésitez pas à vous
Revue d'urbanisme Diagonal
core   +1 more source