Results 21 to 30 of about 422,636 (257)

Tunable topology and berry curvature dipole in transition metal dichalcogenide Janus monolayers

open access: yesMaterials Research Express, 2021
Janus transition metal dichalcogenides, with intrinsic mirror asymmetry, exhibit a wide array of interesting properties. In this work, we study Janus monolayers derived from WTe _2 using first-principles and tight-binding calculations.
Nesta Benno Joseph   +2 more
doaj   +1 more source

Crystal Structure and Chemistry of Topological Insulators

open access: yes, 2013
Topological surface states, a new kind of electronic state of matter, have recently been observed on the cleaved surfaces of crystals of a handful of small band gap semiconductors.
Cava, R. J.   +4 more
core   +1 more source

Chameleon-like behaviour of cyclo[n]paraphenylenes in complexes with C70: on their impressive electronic and structural adaptability as probed by Raman spectroscopy [PDF]

open access: yes, 2014
Este artículo ha sido publicado por Royal Society of ChemistryA series of four 1:1 host-guest supramolecular complexes of [n]CPPs and C70 have been analyzed by Raman spectroscopy in solid state and complemented with the analysis of their spectroscopic ...
Casado-Cordon, Juan
core   +1 more source

Crystal landscape in the orcinol:4,4′-bipyridine system: synthon modularity, polymorphism and transferability of multipole charge density parameters

open access: yesIUCrJ, 2014
Polymorphism in the orcinol:4,4′-bipyridine cocrystal system is analyzed in terms of a robust convergent modular phenol...pyridine supramolecular synthon.
Ritesh Dubey   +3 more
doaj   +1 more source

Evidence for existence of Functional Monoclinic Phase in Sodium Niobate based Solid Solution by Powder Neutron Diffraction

open access: yes, 2018
We have carried out systematic temperature-dependent neutron diffraction measurements in conjunction with dielectric spectroscopy from 6 to 300 K for sodium niobate based compounds (1-x) NaNbO3 -xBaTiO3 (NNBTx).
Chaplot, S. L.   +5 more
core   +1 more source

From colloidal dispersions to colloidal pastesthrough solid–liquid separation processes [PDF]

open access: yes, 2005
Solid–liquid separation is an operation that starts with a dispersion of solid particles in a liquid and removes some of the liquid from the particles, producing a concentrated solid paste and a clean liquid phase.
Botet, Robert   +6 more
core   +6 more sources

Sensitivity and resolution enhancement in the SERF experiment using perfect echo and by elimination of axial peaks and ghost couplings

open access: yesJournal of Magnetic Resonance Open, 2022
Due to its inherent insensitivity amongst the spectroscopic techniques, improvements in sensitivity and resolution are always demanding in NMR spectroscopy.
Surbhi Tiwari   +3 more
doaj   +1 more source

KNH2 - KH: a metal amide - hydride solid solution [PDF]

open access: yes, 2016
We report for the first time the formation of a metal amide-hydride solid solution. The dissolution of KH into KNH2 leads to an anionic substitution, which decreases the interaction among NH2 - ions.
Baricco, Marcello   +15 more
core   +4 more sources

Combinatorial selection of molecular conformations and supramolecular synthons in quercetin cocrystal landscapes: a route to ternary solids

open access: yesIUCrJ, 2015
The crystallization of 28 binary and ternary cocrystals of quercetin with dibasic coformers is analyzed in terms of a combinatorial selection from a solution of preferred molecular conformations and supramolecular synthons.
Ritesh Dubey, Gautam R. Desiraju
doaj   +1 more source

C-demethylation and 1, 2-amino shift in (E)-2-(1-(3-aminophenyl) ethylidene)hydrazinecarboxamide to (E)-2-(2-aminobenzylidene)hydrazinecarboxamide and their applications

open access: yesScientific Reports, 2020
A Novel (E)-2-(1-(3-aminophenyl)ethylidene)hydrazinecarboxamide 1 was synthesized by traditional method and converted to (E)-2-(2-aminobenzylidene)hydrazinecarboxamide 2 by single step in DMSO at room temperature.
M. Sennappan   +3 more
doaj   +1 more source

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